KR-20260065097-A - V2X-Based Multi-Stage Forward Collision Warning System

KR20260065097AKR 20260065097 AKR20260065097 AKR 20260065097AKR-20260065097-A

Abstract

The V2X-based stepwise forward collision warning system of the present invention is a vehicle safety system that detects dangerous situations ahead in real time and provides customized warnings considering the characteristics of individual drivers. This system utilizes V2X communication to detect risk factors, such as vehicles rapidly decelerating ahead or obstacles, and transmits them to rear vehicles as warning messages. The warning messages are provided with different content corresponding to pre-set lane change zones and speed deceleration zones, and each zone can be configured according to the severity of the dangerous situation and the distance between vehicles. The present invention can contribute to enhancing road safety through real-time communication between vehicles and driver-customized stepwise warning messages, and to preventing rear-end collisions through stepwise warnings that reflect the characteristics of individual drivers.

Inventors

신우재
김정훈

Assignees

주식회사 켐트로닉스

Dates

Publication Date: 20260508
Application Date: 20241031

Claims (7)

In a forward collision warning providing system that detects hazards ahead and provides stepwise warning messages to rear vehicles, A risk detection module comprising one or more forward detection sensors and collecting risk factors in front of the vehicle using the forward detection sensors; A data processing module that analyzes the location, speed, and shape of risk factors by analyzing data collected from the above-mentioned risk detection module; A warning level setting module that sets warning indicators based on data analyzed by the above data processing module and sets customized warnings through this; A V2X communication module that transmits and receives real-time warning messages between vehicles using V2X communication; and A warning personalization module that generates a personalized warning message by assigning weights based on driver characteristics to a received warning message; Includes, The above warning level setting module sets a first zone (Zone 1) and a second zone (Zone 2) at preset locations according to a risk factor in front of the vehicle, and generates different preset level warning messages corresponding to each zone, and The above V2X communication module provides a stepwise warning message generated by the above warning step setting module to rear vehicles located in the first and second areas, Phased forward collision warning system utilizing V2X.
In Article 1, The above warning personalization module is, Generating a personalized warning message by applying a pre-set weight based on the driver's age characteristics to a warning message received through the above V2X communication module, Phased forward collision warning system utilizing V2X.
In Article 1, The above warning personalization module is, By cumulatively analyzing the timing of warning message display and the driver's actual reaction, the average reaction time of the target driver is obtained in advance, and Generating a personalized warning message by applying a preset weight based on the driver's average reaction time to a warning message received through the above V2X communication module. Phased forward collision warning system utilizing V2X.
In Article 1, The above warning personalization module is, Pre-acquired by cumulatively analyzing a pre-set driving habit score based on the driver's driving habits, and Generating a personalized warning message by applying a pre-set weight according to the driver's driving habit score to a warning message received through the above V2X communication module. Phased forward collision warning system utilizing V2X.
In Article 1, The above-mentioned risk detection module is, It further includes a forward monitoring sensor comprising one or more of a radar, LiDAR, and camera mounted on the front of the vehicle, and Detecting risk factors in front of the vehicle in real time through the aforementioned front monitoring sensor, Phased forward collision warning system utilizing V2X.
In Article 1, The above warning level setting module is, Setting the level of the warning message based on one or more of the Time-to-Collision (TTC) indicator, which is the time distance to the vehicle ahead; the Stopping Distance Index (SDI) indicator, which is the stopping distance; and the Deceleration Rate to Avoid Crash (DRAC) indicator, which is the deceleration rate for collision avoidance. Phased forward collision warning system utilizing V2X.
In Article 1, The above V2X communication module is, Includes V2X OBE (On-Board Equipment) installed in the vehicle, Transmitting and receiving warning messages in the form of V2V messages to and from one or more vehicles within the communication range via the above V2X OBE, Phased forward collision warning system utilizing V2X.

Description

V2X-Based Multi-Stage Forward Collision Warning System The present invention relates to a vehicle safety system that enables safe driving by recognizing risk factors in real time via V2X communication and providing customized warnings tailored to the individual characteristics of the driver. In particular, the present invention relates to a technology that utilizes V2X (Vehicle-to-Everything) technology to detect vehicles rapidly decelerating or obstacles located ahead in real time and provides warnings to vehicles behind in stages, while maximizing accident prevention effects by providing customized warnings that take into account the individual driver's age, cognitive reaction speed, and driving habits. Generally, a V2X-based forward collision warning system provides warning messages to all drivers of vehicles proceeding behind when a danger occurs ahead of the driving path. However, conventional V2X-based forward collision warning systems had a problem in that they could not reflect the driver's characteristics or driving habits because they generated and transmitted the same warning message to all vehicles within the communication range. In particular, drivers' reaction times vary depending on age, physical condition, and driving experience. Generally, older drivers have slower cognitive reaction times, and drivers with physical disabilities may find it difficult to react quickly. Conventional systems provide warnings based on the assumption that all drivers have the same reaction speed; therefore, there was a limitation in that drivers with slower reaction times could fail to respond to warnings in a timely manner, potentially increasing the risk of accidents. In addition, drivers have different driving habits, differing in aspects such as the frequency of sudden braking and whether or not turn signals are used when changing lanes. While these habits can influence a driver's reaction to dangerous situations, existing systems apply the same warning standards without reflecting these differences. Consequently, there was a limitation in that the effectiveness of warnings could be reduced, as some drivers were more likely to overreact or ignore the warnings. Therefore, the development of technology to solve this is required. As one of the vehicle-to-vehicle risk warning technologies using a conventional V2X communication module, Korean Registered Patent 10-1830399 "Device and Method for Warning Collision Risk Using V2V Communication" describes a technology in which a device and method for warning collision risk using V2V communication transmits and receives collision risk objects collected through a sensor unit installed on one's own vehicle or another vehicle via V2V communication, and Korean Registered Patent 10-2111907 "Device and Method for Warning Overtaking Risk of Vehicle" describes a technology for transmitting and receiving vehicle information and lane change signals collected through a vehicle information collection unit to and from other vehicles, and Korean registered patent 10-1117168 "In-vehicle telematics device and method for providing vehicle surrounding information using V2V communication" describes a technology that provides information such as lane changes, vehicle accidents, and dangerous vehicles through short-range wireless communication with a telematics device of another vehicle. However, the aforementioned technologies provide warnings using V2X communication, but they still have the problem of failing to reflect differences in physical reaction speeds and habits among drivers. FIG. 1 is a block diagram showing a stepwise forward collision warning providing system utilizing V2X according to a preferred embodiment of the present invention. FIG. 2 is a block diagram showing an embodiment of a stepwise forward collision warning providing system utilizing V2X according to a preferred embodiment of the present invention. FIG. 3 is a conceptual diagram showing the first and second regions of a stepwise forward collision warning providing system utilizing V2X according to a preferred embodiment of the present invention. Preferred embodiments that can be easily practiced by those skilled in the art to which the present invention pertains are described in detail below with reference to the attached drawings. However, in describing the operating principles of the preferred embodiments of the present invention in detail, if it is determined that a specific description of related known functions or configurations may unnecessarily obscure the essence of the present invention, such detailed description is omitted. This is intended to convey the core of the present invention more clearly without obscuring it by omitting unnecessary descriptions. Furthermore, since the present invention is susceptible to various modifications and may have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description; however, this is not intended to