KR-20260067158-A - (Vehicle-to-X Communication(V2X) using Optical Camera Communication (OCC))

Abstract

According to the vehicle-object communication utilizing optical camera communication of the present invention, the system comprises: a leading vehicle having an optical output unit; an optical output unit coupled to the leading vehicle and transmitting data; a rear vehicle having a camera receiver unit; a camera receiver unit coupled to the rear vehicle and capturing the optical output unit; and a CPU that restores data from the captured image.

Inventors

• 정찬희
• 이민찬
• 서상우
• 박상현

Assignees

• 정찬희
• 이민찬
• 서상우
• 박상현

Dates

Publication Date

20260512

Application Date

20241105

Claims (6)

1. Potential vehicle having a light output section; An optical output unit that is coupled to the above-mentioned potential vehicle and transmits data; Rear vehicle having a camera receiver; A camera receiver coupled to the rear vehicle and capturing a light output unit; CPU that restores data from captured images; Vehicle-to-object communication utilizing optical camera communication including
2. In paragraph 1 The above-mentioned vehicle is a vehicle-object communication system utilizing optical camera communication capable of optical camera communication, including taillights.
3. In paragraph 1 The above-mentioned optical output unit is a vehicle-object communication system utilizing optical camera communication that transmits a signal using a light-emitting element such as an LED.
4. In paragraph 1 The above rear vehicle is a vehicle-object communication system utilizing optical camera communication capable of optical camera communication, including a camera.
5. In paragraph 1 The above camera receiver is a vehicle-object communication system utilizing optical camera communication that captures light from the above light output unit.
6. In paragraph 1 The above CPU is a vehicle-object communication system utilizing optical camera communication that recovers data from a signal captured by the camera receiver.

Description

Vehicle-to-X Communication (V2X) using Optical Camera Communication (OCC) Vehicle-to-X Communication (V2X) using Optical Camera Communication (OCC) The present invention relates to vehicle-object communication utilizing optical camera communication. The following is an overview of the vehicle-to-object communication system utilizing optical cameras. This system operates by converting status information, such as forward, reverse, or stopped movement, from the vehicle ahead into light signals for the taillights and transmitting them to the vehicle behind. When the vehicle ahead is moving forward, it emits a specific light pattern through its taillights, allowing the rear vehicle's camera to recognize it. This enables the rear vehicle to assess the driving situation of the vehicle ahead and perform functions such as maintaining a safe distance or providing driving assistance. For this system, the camera on the rear vehicle captures the taillight signal of the front vehicle, and a separate CPU converts this into data. The light pattern transmitted by the front vehicle is configured to distinguish state information, such as forward, reverse, and stop, through pre-designed data packets. The rear vehicle interprets the state of the front vehicle through these signals and performs a response appropriate to the situation. For example, when the front vehicle stops, the rear vehicle decelerates or stops to prevent a rear-end collision. However, this system has several drawbacks. First, current technology makes real-time response difficult due to slow data transmission speeds. There are limitations in instantly exchanging information between vehicles in rapidly changing traffic conditions, which presents a disadvantage in that real-time response is difficult during highway driving or sudden braking situations. Second, as this is a system based on visible light communication, the accuracy of transmission and reception may decrease if there are obstacles in the signal transmission path or if ambient light, such as natural light, interferes. For example, when bright external light sources like strong sunlight or streetlights are present, taillight signals may become congested, potentially causing the rear vehicle's camera to fail to recognize them accurately and resulting in information loss. Therefore, to effectively utilize this system in real-world applications, improvements are needed to make it less susceptible to environmental changes. FIG. 1 is a perspective view showing vehicle-object communication utilizing optical camera communication according to a preferred embodiment of the present invention. FIG. 2 is an experimental photograph showing vehicle-object communication using optical camera communication according to a preferred embodiment of the present invention. Figure 3 is an experimental result showing vehicle-object communication using optical camera communication according to a preferred embodiment of the present invention. The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Throughout the specification, the same reference numerals refer to the same components. Hereinafter, the present invention will be described with reference to the drawings for explaining vehicle-to-object communication utilizing optical camera communication according to embodiments of the present invention. The electric vehicle (10) has an optical output unit (20). In addition, the leading vehicle (10), that is, the vehicle driving ahead, sends a signal to the following vehicle (30) through the light output unit (20). The light output unit (20) is an LED element mounted on the taillight or turn light of the vehicle, through which the driver can convey information visually without separate wireless communication. For example, when the leading vehicle (10) makes a sudden stop, the LED of the light output unit (20) flashes rapidly, sending a deceleration signal to the following vehicle (30). Also, if the LED flashes at a specific frequency as a left turn signal, the following vehicle (30) can understand the turning intention of the leading vehicle (10) through this. The optical output unit (20) is coupled to the electric vehicle (10) and transmits data. Additionally, the light output unit (20) coupled to the forward vehicle (10) transmits data by flashing an LED at a specific period and pattern. This data includes the forward, backward, and stop movements of the forward vehicle (10), and is converted into an opti