KR101928295B1 - System and method for preventing unexpected vehicle accident adapting light fidelity and transport protocol expert group technologies - Google Patents

Abstract

The present invention is to prevent a collision accident caused by an unexpected situation when driving on a road using LiFi (Light Fidelity) which is a communication technology using light, and TPEG (Transport Protocol Export Group) technology which is an international standard for transmitting traffic travel information, In order to prevent a collision due to an unexpected accident caused by a sudden stoppage of a vehicle in front of the vehicle while the vehicle is driving on the road, the vehicle in which the accident occurred or the vehicle receiving the situation is displayed in a TPEG message format The present invention relates to a system and a method for preventing a vehicle accident by applying LiFi and TPEG technology to prevent collision by transmitting information about an unexpected situation.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a system and a method for preventing an accident of a vehicle using LiFi and TPEG technology,

The present invention is to prevent a collision accident caused by an unexpected situation when driving on a road using LiFi (Light Fidelity) which is a communication technology using light, and TPEG (Transport Protocol Export Group) technology which is an international standard for transmitting traffic travel information, More specifically, in order to prevent a collision accident due to an unexpected accident caused by a sudden stoppage of a forward vehicle while the vehicle is traveling on a road, a vehicle receiving the unexpected situation or an unexpected situation receives a vehicle And a method for preventing a vehicle accident by applying LiFi and TPEG technology that can prevent a collision accident by taking quick action in a nearby vehicle by confirming an unexpected situation information by transmitting information about an unexpected situation to TPEG message format will be.

LiFi is a communication technology using light that was first proposed by Professor Harald Haas, professor of physics and engineering at the University of Edinburgh, UK in 2011. It transmits and receives data between light bulbs and smart devices by transmitting information to light. It was promoted as part of the support project.

Unlike WiFi, which is a communication standard using radio waves, LiFi is a communication method using visible light. It transmits data to a visible light by attaching a chip to an LED light, not a conventional data transmission using electromagnetic waves. Speed transmission speed can be achieved. That is, the LiFi technology is a type of Visible Light Communication (VLC) that transmits information using the wavelength of light emitted from an LED, and can be used anywhere that light is illuminated, is harmless to the human body, It has various advantages such as low cost, high-speed communication, stability, security, etc., and the use fee of the frequency is free with the unauthorized band.

The LiFi is a high-speed bidirectional wireless communication technology with a data transmission rate of 200 Gbps or more. It is capable of selectively transmitting information to vehicles behind a problem vehicle requiring a forward direction information with good linearity, It can be used to secure vehicle safety in unexpected situations such as connection support. As the development and high performance of LED technology have been progressed, LED headlight lamps and signal lamps have spread to various devices of vehicles. Therefore, technological conditions for applying LiFi technology to vehicles are being developed.

In addition, TPEG is an ISO international standard technology for providing traffic and travel information services to vehicles and travelers. It uses media that can transmit digital data to provide various information services such as weather information and travel information as well as traffic information. And is designed to be scalable to ensure flexible acceptance of a variety of future application services.

The TPEG is a universal and universally applicable protocol for transport and travel information transmission, and includes various standards including data encoding, decoding, and filtering. The TPEG is composed of various parts that define a mechanism for allowing a service provider to operate a service using one or more transmission technologies such as DMB, Internet, etc. from a message generation process. Also, it has been developed not to use a location code number on a road network, which is a disadvantage of RDS-TMC (Radio Data System Traffic Message Channel).

The TPEG is independent of various transmission schemes, and can provide services using various transmission media. In addition, information collected in various ways can be provided in various forms, such as text, graphics, and voice, from the service provider's database through the TPEG encoder to the consumer.

On the other hand, there is a case where a vehicle that is driving on the road suddenly appears suddenly due to pedestrians or animals, or an unexpected vehicle breakdown occurs and the vehicle must be stopped.

In such a situation, there is a high possibility of a collision with the following vehicles, and therefore, measures such as operating a vehicle emergency light or installing a safety tripod in the rear of the vehicle in which the problem occurs should be performed.

However, such a method of emergency lighting operation or safety tripod depends on the action of the visual recognition of the driver of the following vehicle, and there is still a possibility that a collision accident is likely to occur when another driver is not careful about driving .

In this way, the vehicles behind the vehicle in the event of sudden braking or an unexpected situation of the front vehicle are more exposed to the risk of a collision accident. And in this regard, Swiss Winterthru has published a study that suggests that more than 60% of accidents can be prevented by early response to a 0.5-second early warning in 2009, "a link between impulse and cervical injuries." Therefore, it is a very effective way to prevent or reduce a collision accident by quickly transmitting an unexpected situation occurring from the front to the rearward vehicles.

However, there is no technical proposal to prevent or reduce a collision accident by applying the LiFi technology to an unexpected situation around the vehicle quickly to another vehicle.

Therefore, in the present invention, by applying LiFi, which is a communication technology using light, and TPEG technology, which is an international standard for transmitting traffic travel information, an unexpected situation such as a sudden stop of a front vehicle traveling on the road is transmitted to nearby vehicles And the driver who receives the information about the unexpected situation through the black box or the dedicated receiving terminal which is installed in the nearby vehicle will be able to take quick action to prevent the accident such as collision.

Next, a brief description will be given of the prior arts that exist in the technical field of the present invention, and technical matters which the present invention intends to differentiate from the prior arts will be described.

Korean Patent Registration No. 1146700 (published on May 23, 2012) discloses a method for providing incident-related context information using a TAPP message, an encoding and decoding device and a method thereof, And various additional information, in particular accident-related situation information such as road construction or vehicle collision, and an encoding and decoding apparatus and method using the TEACP message.

The prior art provides some information related to the accident related situation such as a vehicle collision through the TPEG message. The TPEG message has some similarities with the configuration for receiving and processing the information about the unexpected situation in the forward vehicle through the TPEG standard system.

However, the present invention applies LiFi and TPEG technology, which are communication technologies using light, to transmit an unexpected situation such as a sudden stop of a forward vehicle to nearby vehicles through a LiFi transmission device, so that a LiFi reception supporting black box The present invention provides a technical arrangement that the special reception terminal receives the notification and immediately prevents the driver from taking an emergency situation and prevents a collision accident due to an unexpected situation, The present invention provides a technical configuration in which an accident related situation information such as a vehicle collision other than an unexpected occurrence is transmitted through the TPEG message and displayed on the DMB terminal.

Also, Korean Patent No. 0929581 (published on Dec. 3, 2009) relates to a method of processing TPEG-based emergency service in case of emergency such as traffic accident through TPEG terminal.

The prior art includes receiving GPS information transmitted from a GPS satellite and outputting location data of a user, receiving a Transport and Travel Information (TTI) service signal encoded in TPEG transmission format among DMB signals received through a broadcasting network Extracting EMRI (EMeRgency Information) application data by decoding the received TTI service signal, and, if there is an emergency request signal of the user, extracting EMRI application data from the extracted EMRI application data based on the user's location data The TPEG standard system and the TPEG standard system in order to provide information on the emergency situation on the basis of the TPEG, There is a similarity.

However, according to the present invention, when an unexpected situation such as a sudden stop of a vehicle that is traveling is transmitted to nearby vehicles through a LiFi transmission device, a driver who confirms information on an unexpected situation through a LiFi reception- It is possible to provide a location of a user who has experienced an emergency of the prior art to an emergency call response center or to provide emergency situation processing facility information to a user The difference in technical characteristics is obvious compared to the technical structure provided to the user.

That is, since each of the above-described prior arts receives the incident-related situation information such as a vehicle collision through the TPEG message and displays it on the dedicated terminal, it is possible to use LiFi, a light- By applying TPEG technology, sudden situation such as sudden stop of the front vehicle traveling on the road is transmitted to the surrounding vehicles through the LiFi transmission device, thereby preventing a collision accident caused by an unexpected situation occurring in the adjacent vehicle The present invention is not limited thereto.

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a LiFi reception-enabled black box or a dedicated reception terminal mounted on a vehicle by using LiFi, a light communication technology, and TPEG technology, The system can prevent the driver from accidentally recognizing the vehicle accident by using the LiFi and TPEG technology, which allows the driver to quickly recognize the unexpected situation separately from the visual perception through the data. And to provide such a method.

In order to prevent a collision caused by an unexpected accident caused by a sudden stop of a forward vehicle while a vehicle is driving on a road, a vehicle in which an unexpected situation has occurred or a vehicle having received an unexpected situation is driven by LiFi , A vehicle accident prevention system that uses LiFi and TPEG technology to prevent accident such as collision through prompt action by the driver who receives the unexpected situation information by transmitting information about the unexpected situation by the TPEG message format It is another purpose to provide such a method.

The vehicle accident prevention system using LiFi and TPEG technology according to an embodiment of the present invention can detect an unexpected situation about a direction including a front, rear, left, or a combination of the vehicle itself based on information sensed by a plurality of sensors And an unexpected situation propagating unit for transmitting the detected unexpected situation in a direction including rearward, leftward, rightward, frontward, or a combination thereof, wherein the vehicle in which the unexpected situation has occurred or the vehicle receiving the unexpected situation Information on the unexpected situation formatted in the LiFi TPEG message is transmitted to another vehicle to prevent a collision accident.

The vehicle accident prevention system may further include an unexpected condition receiving unit for receiving information on the unexpected condition from another vehicle.

The unexpected state detection unit determines the occurrence and type of the unexpected vehicle based on the information including the running speed of the vehicle, the normal deceleration, the sudden stop due to an accident, or a combination thereof. Thereby confirming the information.

The unexpected situation propagating unit includes using the LiFi-type transmitter installed at the rear of the own vehicle to propagate the information about the unexpected situation to other vehicles in a direction including forward, backward, leftward, rightward, or a combination thereof , The transmitter transmits visual light and information about the unexpected situation by LiFi method, and the information about the unexpected situation includes GPS coordinates at the point where an unexpected situation occurs, a type of unexpected situation, or a combination thereof Information is included and is formatted and transmitted as a TPEG message.

The vehicle accident prevention system may further include an unexpected condition action unit for taking an action against the detected unexpected condition, and the unexpected condition action unit may include a driver and an autonomous vehicle To provide information on the situation in an audiovisual and electronic manner so as to recognize the unexpected situation and perform necessary measures including braking or lane change by the driver's operation or automatic control of the autonomous vehicle, And generating an alarm signal through an unexpected state propagation unit of the vehicle in order to provide the vehicle with an additional alarm for the corresponding unexpected information on its own vehicle.

In addition, according to an embodiment of the present invention, there is provided a vehicle accident prevention method using LiFi and TPEG technology, wherein, in an unexpected situation detection unit, Detecting an unexpected situation with respect to a direction including the direction; And an unexpected state propagation step of propagating an unexpected state detected in the unexpected state sensing step in a direction including a rearward, left, right, forward, or a combination thereof at an unexpected state propagating section, The vehicle having received the unexpected situation transmits information on the unexpected situation that is formatted by the LiFi TPEG message to another vehicle to prevent a collision accident.

The vehicle accident prevention method may further include an unexpected situation reception step of receiving information on the unexpected situation from another vehicle.

The unexpected state sensing step determines the occurrence and type of an unexpected vehicle based on information including a vehicle speed, a normal deceleration, a sudden stop due to an accident, or a combination thereof. And the location information is confirmed.

The unexpected situation propagating step may include transmitting the information on the unexpected situation to the other vehicle in the direction including forward, backward, left or right, or a combination thereof using a LiFi-type transmitter installed at the tail of the own vehicle in the unexpected situation propagating unit Wherein the transmitter transmits data modulated by the LiFi method to visual light and information about the unexpected situation, the information about the unexpected situation includes GPS coordinates of the point at which an unexpected event occurs, Type, or a combination thereof, and is transmitted in the TPEG message format.

The vehicle accident prevention method may further include an unexpected situation action step of taking an action against an unexpected situation detected in the unexpected situation detection step in an unexpected situation action unit, The information about the unexpected situation is visually and electronically provided so that the driver or the autonomous vehicle recognizes the incident situation in consideration of the occurrence position and the type of the accident, Including generating braking or lane changes and generating an alarm signal through an unexpected condition propagation unit of the vehicle in order to provide additional alarms to the surrounding vehicles on their own vehicle .

As described above, according to the system and method for preventing the vehicle accident, LiFi communication technology and TPEG traffic information transmission international standard are applied so that nearby vehicles can quickly respond appropriately when an unexpected situation occurs Thus, the driver can quickly judge the unexpected situation separately from the visual perception through the confirmation of the information of the data format, thereby preventing the accident such as the collision due to the sudden situation caused by the sudden stop of the vehicle ahead So that it is easy to secure the safety of the vehicle.

In addition, since information about an unexpected situation is transmitted using a high-speed data transmission rate and a straight-forward LiFi method, it is not necessary to allocate or use a specific frequency band as in the case of using radio waves, There is no effect.

In addition, since the TPEG format, which is an international standard of ISO, is applied, not only the compatibility can be ensured, but also it is advantageous to spread the service, and it is possible to induce safe and efficient vehicle operation.

In addition, there is an effect that it can be advantageously utilized for securing the running safety of self-driving vehicles in keeping with the increase of self-driving vehicles.

FIG. 1 is a conceptual diagram for explaining a vehicle accident prevention process using LiFi and TPEG technology to which the present invention is applied.
FIG. 2 is a conceptual diagram for explaining whether a collision accident occurs depending on a distance between two vehicles and a braking time. FIG.
Fig. 3 is a diagram for explaining the process of detection, measure, and propagation of an unexpected situation.
4 is a diagram for explaining a transmission / reception process of information on an unexpected situation in the propagation process of an unexpected situation.
FIG. 5 is a diagram schematically showing a configuration of a vehicle accident prevention system applying LiFi and TPEG technology according to an embodiment of the present invention. Referring to FIG.
FIGS. 6 and 7 are flowcharts illustrating an operation procedure of a vehicle accident prevention method using LiFi and TPEG techniques according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a vehicle accident prevention system and a method of applying the LiFi and TPEG technologies of the present invention will be described in detail with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements. Furthermore, specific structural and functional descriptions for embodiments of the present invention are presented for the purpose of describing an embodiment of the present invention only, and, unless otherwise defined, all terms used herein, including technical or scientific terms Have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as ideal or overly formal in the sense of the art unless explicitly defined herein .

FIG. 1 is a conceptual view for explaining a vehicle accident prevention process using LiFi and TPEG technology to which the present invention is applied, FIG. 2 is a conceptual diagram for explaining a collision accident depending on a distance between two vehicles, FIG. And FIG. 4 is a view for explaining a process of transmitting and receiving information on an unexpected situation in the propagation process of an unexpected situation.

As shown in FIGS. 1 to 4, in order to utilize the services supported by the present invention, LiFi and TPEG technologies are used in combination for each vehicle, A vehicle incendiary prevention system is provided that detects information on an unexpected situation or receives it from another vehicle, thereby allowing drivers to immediately recognize the unexpected situation on a data basis separately from the visual perception and to perform the action.

For example, an unexpected situation occurs in the vehicle # 1 and information about an unexpected situation is propagated to other vehicles in the vehicles # 1 and # 2 (including the vehicles # 2-1 and # 2-2) 1 to the vehicle # 3 based on the information on the unexpected situation, the occurrence of an accident such as a collision accident will be described as an example.

First, when an unexpected situation occurs such as sudden stoppage due to a sudden appearance of a pedestrian or an animal, or unexpected failure, while driving on the road in the vehicle # 1, the possibility of a collision with a following vehicle increases. For example, FIG. 2 shows a low collision risk position, a high collision risk position, a collision avoidable position, and a collision position according to a distance between two vehicles and a braking time, If a sufficient distance is not secured or if braking is not performed quickly, a collision accident may occur.

In order to solve this problem, the vehicle # 1 detects whether any unexpected situation occurs based on the information detected by each sensor provided in the vehicle (1).

Then, the vehicle # 1 carries out braking, lane changing, alarm generation, etc. in accordance with the occurrence of an unexpected situation so as to prevent an accident (②).

Then, information about an unexpected situation is formatted in the TPEG message in the vehicle # 1, information about an unexpected situation in which the TPEG message is formatted is modulated into a LiFi scheme provided at the rear of the vehicle, 2, # 2-1, # 2-2) (③). At this time, it is preferable that the transmitter is installed in a direction indicator lamp provided at the rear of the vehicle so that information about an unexpected situation can be easily propagated to a vehicle located in the rear or left and right direction. It goes without saying that the transmitter may be used in addition to a direction indicator lamp provided at the rear of the vehicle, or may be installed in a safety tripod or the like for warning a rear vehicle when a malfunction occurs in the headlight or the vehicle.

Then, in the vehicle # 2, information on the unexpected situation propagated through the LiFi transmitter of the vehicle # 1 is received by the receiver (4).

The information including the GPS coordinates of the unexpected situation included in the information about the unexpected situation received through the receiver, the type of the unexpected situation, the alarm of the occurrence of the unexpected situation, or a combination thereof is supported by the LiFi receiver mounted on the vehicle. It is provided audiovisually through a box or a dedicated receiving terminal to allow the driver to quickly recognize the occurrence of an unexpected situation or electronically provide information about the unexpected situation so that the autonomous vehicle recognizes the occurrence location and type of the unexpected situation do.

Thereafter, a necessary action including braking or lane change is performed by the operation of the vehicle driver recognizing the occurrence of an unexpected situation or the automatic control of the autonomous vehicle through a black box or a dedicated receiving terminal supporting LiFi reception, So that an accident such as a collision accident in the vehicle # 2 does not occur (5).

As described above, in the process of receiving the information about the unexpected situation from the vehicle # 1 in the vehicle # 2 and performing the action, and in the vehicle # 2 receiving the information about the unexpected condition formatted by the TPEG message from the vehicle # 1, (I.e., vehicle # 3 in FIG. 1) through the LiFi transmitter ((6)).

In this case, the processes (4) and (5) (that is, the process of receiving the sudden situation information from another vehicle and performing appropriate actions) and the process of (6) , ⑥ process is performed first, then ④ and ⑤ process may be performed.

After propagating information about the unexpected state transmitted from the vehicle # 1 to the other vehicle (i.e., the vehicle # 3) located rearward or laterally in the vehicle # 2, the vehicle # 3 transmits the information from the vehicle # 2 through the LiFi- (⑦), and measures such as braking, lane change, alarm generation, etc. are performed to prevent the occurrence of an accident (⑧). In this case, the vehicle # 3 can not directly receive the information on the unexpected situation from the vehicle # 1 on the characteristic of the VLC when there is the vehicle # 2 ahead of the vehicle # 2, and so on. At this time, when the same information is simultaneously received from several vehicles in the vehicle # 3, only one piece of information can be selected.

On the other hand, contrary to the description in FIG. 1, information about an unexpected situation is propagated from the vehicle # 3 to the vehicle # 1, so that measures against an unexpected situation of the rear vehicle in the vehicle positioned ahead can be performed. For example, if a rear-end collision occurs in the rear, vehicles running in front of the vehicle will be notified immediately of the occurrence of the accident so that the driver in front of the vehicle changes the lane or speeds up so as not to cause another collision accident.

Accordingly, in a vehicle that receives information related to the occurrence of an unexpected situation from a vehicle or another vehicle in which an unexpected situation has occurred, it transmits the unexpected information to nearby vehicles through a LiFi-type transmitter mounted on the vehicle, Based on the data, it is possible to quickly identify the occurrence of an unintentional situation separately from the visual perception, and to take measures to prevent other accidents.

In other words, the LiFi signal transmitted from the vehicle in the event that an unexpected situation occurs or an unexpected situation is received through a LiFi reception supporting black box or a dedicated receiving terminal mounted on the surrounding vehicle, so that the driver of the surrounding vehicle can recognize the unexpected situation separately from the visual recognition And to take prompt action.

FIG. 5 is a diagram schematically showing a configuration of a vehicle accident prevention system applying LiFi and TPEG technology according to an embodiment of the present invention. Referring to FIG.

As shown in the figure, the vehicle accident prevention system 1 of the present invention includes a plurality of sensors 10, an unexpected condition sensing unit 20, a GPS receiver 30, an unexpected condition propagation unit 40, a transmitter 50, A receiver 60, an unexpected condition receiving unit 70, an unexpected condition measure unit 80, a display unit 90, a storage unit 100, a control unit 110, and the like.

A plurality of sensors 10 are provided inside and outside the vehicle, and sense the overall operation state of the vehicle such as acceleration, deceleration, shock, and the like, and output the sensed data to the control unit 110.

Based on the control of the control unit 110, the unexpected condition detection unit 20 detects various unexpected conditions with respect to directions including forward, backward, left and right of the vehicle itself or a combination thereof by referring to the data measured by the sensor 10 do. That is, when a pedestrian or an animal suddenly appears on the road, a sudden situation such as a sudden stoppage or a breakdown occurs is detected.

At this time, the unexpected condition sensing unit 20 determines the occurrence and type of the unexpected vehicle based on the information including the traveling speed of the vehicle, normal deceleration, sudden stop due to an accident, or a combination thereof. 30 to the control unit 110. The control unit 110 controls the operation of the control unit 110 according to the detected position.

The GPS receiver 30 receives the GPS information from the GPS satellite according to the request of the sudden situation sensing unit 20 and confirms the location information in which the unexpected situation occurred.

The unexpected state propagating unit 40 functions to propagate various incidents detected by the unintentional state sensing unit 20 in the directions including rearward, leftward, rightward, or a combination thereof. At this time, the unexpected state propagation unit 40 formats information on an unexpected situation into a TPEG message, converts data formatted by the TPEG message into a LiFi format in the transmitter 50, and transmits the formatted data to another vehicle. The information on the unexpected situation includes the GPS coordinates of the unexpected situation, the type of the unexpected situation, or a combination thereof.

In addition, the unexpected state propagation unit 40 uses a LiFi-type transmitter 50 installed at a rear end of a vehicle, such as a direction indicator lamp, a headlight, and a safety tripod for warning a rear vehicle when a failure occurs in the vehicle Information about the unexpected situation is propagated to other vehicles in the direction including forward, backward, left and right, or a combination thereof.

The transmitter 50 transmits data modulated by the LiFi method to information on an unexpected situation formatted by the visual light and the TPEG message in the unexpected state propagation unit 40 in a direction including rearward, leftward, forward, or a combination thereof Transmits to another vehicle.

The receiver 60 is provided in a LiFi reception supporting black box or a dedicated receiving terminal mounted on the vehicle and receives information on an unexpected situation propagated from a LiFi transmitter 50 provided in another vehicle and transmits the information to the unexpected state receiver 70 .

The unexpected state receiver 70 restores the LiFi data received from the receiver 60 and confirms the information about the unexpected situation extracted by the TPEG message, thereby obtaining the GPS coordinates of the unexpected situation, the type of the unexpected situation, Check the information including.

The unexpected condition-handling unit 80 performs necessary actions including braking or lane-changing by the operation of the vehicle driver recognizing the unexpected condition detected by the unexpected condition receiving unit 70 or by the automatic control of the autonomous vehicle, Thereby preventing the occurrence of other accidents.

At this time, the unexpected condition-handling unit 80 provides the information about the unexpected situation electronically so that the driver or the autonomous vehicle recognizes the unexpected condition in consideration of the occurrence position and the type of the unexpected condition . Further, it is possible to additionally perform a function of generating an alarm signal through the unexpected state propagation unit 40 of the own vehicle, in order to provide additional alarms to the nearby vehicles on the own vehicle.

The display unit 90 displays information including GPS coordinates of the unexpected situation detected by the unexpected state receiving unit 70, a type of an unexpected situation, or a combination thereof based on the control of the controller 110, Let them know quickly.

The storage unit 100 stores various operation programs used in the vehicle accident prevention system 1.

The control unit 110 detects various unexpected situations in the unexpected situation detection unit 20 and confirms the location information in which the unexpected situation has occurred in the GPS receiver 30 and the TPEG A message format, modulation of the LiFi system in the transmitter 50 and propagation to another vehicle, identification of the unexpected situation information received from the other vehicle by the receiver 60 in the unexpected situation receiving unit 70, ), Performing necessary actions including braking or lane change by automatic control of the autonomous vehicle, displaying the unexpected situation information through the display unit 90, and storing data in the storage unit 100 As shown in FIG.

Next, an embodiment of a vehicle accident prevention method using the LiFi and TPEG technology according to the present invention will be described in detail with reference to FIGS. 6 and 7. FIG. At this time, each step according to the method of the present invention may be changed in the use environment or the order by a person skilled in the art.

FIGS. 6 and 7 are flowcharts illustrating an operation procedure of a vehicle accident prevention method using LiFi and TPEG techniques according to an embodiment of the present invention.

First, as shown in FIG. 6, it is determined whether a sudden situation such as a sudden stoppage or an unexpected failure occurs due to a sudden appearance of a pedestrian or an animal while driving the road (S110).

As a result of the determination in step S110, if an unexpected situation is detected, the unexpected condition detection unit 20 of the specific vehicle detects a vehicle speed, a normal deceleration, and an accident caused by the various sensors 10 provided inside and outside the vehicle (S120). The GPS receiver (30) confirms what kind of an unexpected situation has occurred based on the measurement data including the sudden stop caused by the GPS receiver (30) or a combination thereof.

At this time, it is possible to perform detection of an unexpected situation occurring in a specific vehicle in another vehicle that is located in the rear or left / right direction of the specific vehicle.

After the occurrence of the unexpected situation is detected in step S120, the unexpected condition measure unit 70 of the corresponding vehicle performs an appropriate action based on the information on the unexpected situation (S130). In other words, necessary actions including braking or lane change are performed by the operation of the driver or the automatic control of the autonomous vehicle by recognizing the occurrence of an unexpected situation through a black box or a dedicated receiving terminal supporting LiFi reception. At this time, the measure for the unexpected situation performed in step S130 may include generating an alarm signal for the nearby vehicles in the vehicle.

After taking measures against the unexpected situation, the unexpected situation propagation unit 40 of the vehicle formats the unexpected information detected in step S120 into the TPEG message (S140). The unexpected situation information generated at this time is information such as the GPS coordinates of the unexpected situation, the type of the unexpected situation, and the like.

The unexpected state information formatted in the TPEG message in step S140 is modulated by the LiFi scheme through the transmitter 50, and the data modulated by the LiFi scheme is propagated to other vehicles located in the rearward, leftward, and rightward directions (S150).

Then, as shown in FIG. 7, it is determined whether the information about the unexpected condition modulated by the LiFi method from the vehicle located in the forward, rearward, or left and right direction is received through the receiver 60 in another vehicle (S210).

As a result of the determination in step S210, when the information about the unexpected situation modulated by the LiFi scheme is received from the surrounding vehicle, the unexpected situation receiver 70 of the vehicle restores the LiFi data received from the receiver 60, (S220).

In step S230, the unexpected action unit 70 performs an appropriate action based on the information on the unexpected situation of the TPEG message extracted in step 220. [ In other words, through the black box or dedicated receiving terminal supporting LiFi reception, it is necessary to perform necessary measures including braking or lane change by the operation of the driver who recognizes the occurrence of an unexpected situation or the automatic control of the autonomous vehicle. The measure for the unexpected situation performed in the step S230 may include generating an alarm signal for the nearby vehicles in the corresponding vehicle.

After the necessary actions are performed through step S230, the vehicle having received the information about the unexpected condition formatted by the TPEG message from the vehicle in which the unexpected situation occurred is transmitted to the other vehicle again to transmit the information about the unexpected situation. In the emergency situation propagation unit 40 of the vehicle, the unexpected situation information extracted in step S220 is formatted into a TPEG message (S240).

Then, in S240, the extreme situation information formatted by the TPEG message is modulated by the LiFi system through the transmitter 50, and then the data modulated by the LiFi system is propagated to other vehicles located in the rearward, leftward, and rightward directions at step S250.

As described above, according to the present invention, since the LiFi communication technology and the TPEG traffic information transmission international standard are applied, drivers can quickly determine an unexpected situation separately from the visual recognition through the confirmation of data information, It is easy to secure the safety of the vehicle because the accident can be prevented beforehand.

In addition, since the information on the unexpected situation is transmitted by the LiFi system, which has a high data rate and high linearity, it is not necessary to allocate or use a specific frequency band as in the case of using radio waves, and there is no fear of radio interference.

In addition, since the TPEG format, which is an international standard of ISO, is applied, not only compatibility can be ensured, but also it is advantageous to spread the service, and it is possible to drive the vehicle safely and efficiently.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, I will understand the point. Accordingly, the technical scope of the present invention should be determined by the following claims.

1: Vehicle accident prevention system 10: Sensor
20: Sudden situation detection unit 30: GPS receiver
40: Emergency situation propagation part 50: Transmitter
60: Receiver 70:
80: emergency situation countermeasure 90: display
100: storage unit 110:

Claims (10)

The control unit determines whether an unexpected condition has occurred in the vehicle based on information including driving speed, deceleration, sudden stop, or a combination thereof detected by the plurality of sensors. If the unexpected condition occurs, And an abrupt situation detection unit for confirming GPS coordinates of a point where the unexpected situation occurs through a GPS receiver; And
And an unexpected situation propagating unit for transmitting the GPS coordinates and the unexpected occurrence information of the point where the identified unexpected situation occurs to another vehicle in the direction including the rearward, leftward, rightward, forward, or a combination thereof,
The GPS coordinates of the point where the unexpected situation occurs and the unexpected situation occurrence information are converted into a LiFi TPEG message in the vehicle where the unexpected situation has occurred and transmitted to another vehicle through the transmitter to prevent a collision accident Vehicle accident prevention system using LiFi and TPEG technology. The method according to claim 1,
The vehicle accident prevention system includes:
And an unexpected condition receiving unit for receiving GPS coordinates of the point where the unexpected condition occurs and the unexpected condition occurrence information from another vehicle through the receiver,
Wherein the unexpected state propagating unit comprises:
Wherein the GPS coordinates and the unexpected occurrence information of the point at which the unexpected situation is received from the other vehicle are transmitted to another vehicle by applying the LiFi and TPEG techniques. delete delete The method according to claim 1,
The vehicle accident prevention system includes:
The GPS coordinates and the unexpected occurrence information of the point where the unexpected situation occurs can be audibly or electronically provided so that the driver or the autonomous vehicle can recognize the braking or lane change by the operation of the driver or the automatic control of the autonomous vehicle And an unexpected condition action unit for performing a necessary action including the TPEG and LiFi. The unexpected condition detecting unit determines whether an unexpected condition has occurred in the vehicle based on the information including the running speed, deceleration, sudden stop, or a combination thereof detected by the plurality of sensors. If the unexpected condition occurs, the unexpected condition occurs An unexpected situation detection step of generating an unexpected incident occurrence information to be confirmed and confirming GPS coordinates of a point where the unexpected situation occurs through a GPS receiver; And
The GPS coordinates of the point where the unexpected situation detected in the unexpected situation detection step and the unexpected situation occurrence information are transmitted from the unexpected situation propagation unit to the unexpected situation propagating to the other vehicle in the direction including the rearward, Comprising:
The GPS coordinates of the point where the unexpected situation occurs and the unexpected situation occurrence information are converted into a LiFi TPEG message in the vehicle where the unexpected situation has occurred and transmitted to another vehicle through the transmitter to prevent a collision accident Of LiFi and TPEG technology. The method of claim 6,
The vehicle accident prevention method includes:
And an unexpected state reception step of receiving GPS coordinates of the point where the unexpected situation occurs and the unexpected occurrence information from another vehicle through the receiver,
Wherein the unexpected state propagating unit comprises:
Wherein the GPS coordinates and the unexpected occurrence information of the point at which the unexpected situation is received from the other vehicle are transmitted to another vehicle by using the LiFi and TPEG techniques. delete delete The method of claim 6,
The vehicle accident prevention method includes:
The GPS coordinates of the point where the unexpected situation occurred in the unexpected situation detection step and the unexpected occurrence information are provided audibly or electronically so that the driver or the autonomous vehicle can recognize the unexpected situation in the unexpected situation action unit, And an unexpected situation in which a necessary action including braking or lane change is performed by automatic control of the autonomous vehicle is performed by using the LiFi and TPEG techniques.

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