KR-20260065644-A - Vehicle Collision Warning System Based on Road Side Unit

KR20260065644AKR 20260065644 AKR20260065644 AKR 20260065644AKR-20260065644-A

Abstract

The present invention relates to a system that improves traffic safety by utilizing a Roadside Unit (RSU) based on V2X communication to detect abnormal vehicles on the road and provide customized warnings to subsequent vehicles. The RSU recognizes risk factors caused by abnormal vehicles that may occur in various road environments, such as highways, intersections, and interchanges (IC), at an early stage and warns vehicles proceeding behind. In particular, the RSU analyzes the vehicle's location and driving path to set multiple warning points (AP1, AP2) and transmits pre-set step-by-step Roadside Alerts (RSA) according to the approach path of the vehicle proceeding behind, thereby compensating for the limitations of conventional forward collision warning systems using V2V communication that cannot provide warnings according to the road environment.

Inventors

신우재
김정훈

Assignees

주식회사 켐트로닉스

Dates

Publication Date: 20260511
Application Date: 20241031

Claims (7)

In a forward abnormal vehicle risk warning system, It includes a roadside base station (RSU) that receives data through V2X communication with one or more vehicles, analyzes the data to determine an abnormal vehicle, and provides a warning message (RSA) containing data regarding the abnormal vehicle to vehicles proceeding behind it. The above roadside base station (RSU) is, A V2X communication module that transmits and receives one or more of PVD (Probe Vehicle Data) and BSM (Basic Safety Message) data through V2X communication with one or more vehicles located on the road; and A data processing module that analyzes PVD and BSM data received from one or more vehicles to determine abnormal vehicles, and generates and outputs a warning message (RSA, Roadside Alert) warning of abnormal vehicles; including, Forward abnormal vehicle danger warning system.
In Article 1, The above data processing module is, A first warning point (AP1) is set at a location spaced a certain distance from the location of the abnormal vehicle, and an RSA is transmitted to induce a lane change to a vehicle passing through the AP1. A second warning point (AP2) is set at a location closer to the abnormal vehicle's location than the AP1, and an RSA is transmitted to vehicles passing the AP2 to induce deceleration and lane change, Providing phased advance warnings for abnormal vehicles located ahead in the direction of travel, Forward abnormal vehicle danger warning system.
In Article 1, The above data processing module is, Analyzing PVD and BSM data periodically received from an arbitrary vehicle, determining a specific vehicle as an abnormal vehicle if its speed drops below a set minimum speed or if it remains stationary, and transmitting an RSA to vehicles proceeding behind based on the location information of the abnormal vehicle, Forward abnormal vehicle danger warning system.
In Article 1, The above RSU is, It further includes a vehicle identification module comprising one of a camera and a lidar for identifying abnormal vehicles on the road, and The above data processing module is, Determining a vehicle as an abnormal vehicle when the state of the vehicle identified through the above vehicle identification module is one of stopping, trunk open, or driving below a reference speed, Forward abnormal vehicle danger warning system.
In Article 1, The above RSU is, It further includes an RSU network module that forms a network with other RSUs using a communication network, and A network is established in which two or more RSUs installed nearby are connected to each other to share data in real time through the above RSU network module, and an RSA generated by any RSU is propagated to other nearby RSUs and provided to vehicles proceeding behind over a wider area. Forward abnormal vehicle danger warning system.
In Article 1, The above data processing module is, Monitoring the speeds of vehicles traveling in each lane on the road by lane, and determining that there are abnormal vehicles in a specific lane if the speed of vehicles traveling in that lane decreases sharply compared to surrounding lanes, Forward abnormal vehicle danger warning system.
In Article 1, The above data processing module is, Analyzing the movement patterns of vehicles traveling in each lane on the road, and determining that an abnormal vehicle is present in a specific lane if a repetitive lane change pattern is detected in that lane, Forward abnormal vehicle danger warning system.

Description

Vehicle Collision Warning System Based on Road Side Unit (RSU) The present invention relates to a technology that ensures the safety of drivers and passengers by utilizing Vehicle-to-Everything (V2X) communication and Roadside Units (RSUs) to monitor road conditions and abnormal vehicles ahead in real time, and by detecting and warning of risk factors at an early stage. In particular, the invention relates to a technology that complements the limitations of Vehicle-to-Vehicle (V2V) communication to expand communication between vehicles and with road infrastructure, thereby extending the range of risk factor recognition, and to enhance driving safety through information sharing between various sensors and RSUs. Currently, most forward hazard warning systems are based on Vehicle-to-Vehicle (V2V) communication. V2V-based forward hazard warning systems collect data such as the vehicle's speed, location, and direction through various sensors installed on the vehicle, and contribute to preventing the risk of accidents between adjacent vehicles by sharing this collected data with surrounding vehicles in real time via V2V communication. However, conventional V2V communication systems are limited to transmitting information only within a restricted distance due to issues such as the distance between vehicles or radio interference. Consequently, this can increase the risk of accidents in wide roads like highways or complex urban environments. Furthermore, conventional V2V communication systems may experience significant communication quality degradation when obstacles (large vehicles, buildings, etc.) are present between vehicles, and limitations arise in detecting risk factors. Furthermore, conventional forward hazard warning systems utilizing V2V communication systems primarily target moving vehicles, making it difficult to effectively deliver warnings to vehicles that are stopped or in abnormal conditions. In particular, in the case of a broken-down vehicle stopped on the road, the distance to approaching vehicles from the rear decreases very rapidly, significantly increasing the risk of collision; thus, rapid warning delivery is required. However, there was a limitation in that warnings could not be delivered quickly due to the limited communication range of V2V. Therefore, the development of technology to solve this is required. As one of the vehicle-to-vehicle risk warning technologies using a conventional V2V communication system, 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 have a configuration for transmitting and receiving data using V2V communication, and still have the aforementioned problems caused by the limitation of the V2V communication range. FIG. 1 is a block diagram showing a forward abnormal vehicle risk warning system utilizing an RSU according to a preferred embodiment of the present invention. FIG. 2 is a block diagram showing an embodiment of a forward abnormal vehicle risk warning system utilizing an RSU according to a preferred embodiment of the present invention. FIG. 3 is a conceptual diagram showing the first warning point and the second warning point of a forward abnormal vehicle risk warning system utilizing an RSU 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, specif