# US 12,214,766 B2 · Vehicle collision prevention system using light sources emitting light rays having different orientations from one another > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,214,766 B2 - Document ID: US12214766B2 - Status: Granted - Kind: B2 - Application number: 17/467,490 - Filed: 2021-09-07 - Published: 2022-03-10 - Granted: 2025-02-04 - Earliest claimed: 2020-09-08 - Assignees: Hyundai Mobis Co., Ltd. - Applicants: Hyundai Mobis Co., Ltd. - Inventors: Myeong Je Kim - Web page: https://patentgrep.com/patent/US12214766B2 ## CPC - B60T 7/12: for automatic initiation; for initiation not subject to will of driver or passenger {(limiting speed of vehicles other than rail vehicles B60K31/00)} - B60T 7/22: initiated by contact of vehicle, e.g. bumper, with an external object, e.g. another vehicle {, or by means of contactless obstacle detectors mounted on the vehicle} - B60W 30/16: Control of distance between vehicles, e.g. keeping a distance to preceding vehicle - G06V 10/141: Control of illumination - G06V 10/145: Illumination specially adapted for pattern recognition, e.g. using gratings - G06V 20/58: Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads - B60T 2201/022: Collision avoidance systems - B60T 2210/32: Vehicle surroundings - B60T 2250/04: Vehicle reference speed; Vehicle body speed - B60W 2420/403: Image sensing, e.g. optical camera - B60T: VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL (electrodynamic brake systems for vehicle, in general B60L; brakes per se, i.e. devices where braking effect occurs, including ultimate brake actuators, F16D); ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES - B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING ## Abstract The present disclosure relates to a vehicle collision prevention system and a collision prevention method by using the same, and may include a first light source positioned on a left side of a vehicle, a second light source positioned on a right side of the vehicle, a camera positioned at a center of the vehicle and providing a shape, which is displayed when rays emitted from the first light source and the second light source irradiate an object, as image data, an image processing device that generating braking information based on the image data, and a braking device that performing a braking operation of decreasing a speed of the vehicle or stopping the vehicle based on the braking information. ## Claims ### Claim 1 A vehicle collision prevention system, the system comprising: a first light source positioned on a left side of a vehicle and configured to emit first rays; a second light source positioned on a right side of the vehicle and configured to emit second rays; a camera positioned at a center of the vehicle and configured to capture a shape of the first and second rays irradiated on an object, and output the captured shape as image data; an image processing device configured to generate braking information based on the image data; and a braking device configured to perform, based on the braking information, decreasing speed of the vehicle or stopping the vehicle, wherein: the first and second rays are emitted to overlap with each other at one focal point, a first shape of the first rays irradiated on the object is different from a second shape of the second rays irradiated on the object, the image processing device is configured to generate the braking information when the image data indicates that the first and second rays overlap with each other on the object, the image processing device is further configured to generate the braking information when the image data indicates that the first rays are displayed on a left side of the object and the second rays are displayed on a right side of the object, and the image processing device is further configured not to generate the braking information when the image data indicates that the first rays are displayed on a right side of the object and the second rays are displayed on a left side of the object. ### Claim 2 (depends on 1) The system of claim 1, further comprising: a vehicle speed sensor configured to sense a vehicle speed and generate vehicle speed information based on the sensed vehicle speed; and a focal length controller configured to change an irradiation angle of the first and second light sources based on the vehicle speed information. ### Claim 3 (depends on 2) The system of claim 2, wherein the focal length controller is further configured to: increase the irradiation angle of the first and second light sources when the vehicle speed information indicates that the vehicle speed increases, and decrease the irradiation angle of the first and second light sources when the vehicle speed information indicates that the vehicle speed decreases. ### Claim 4 (depends on 1) The system of claim 1, wherein the first shape is a first line having a first orientation relative to the vehicle and the second shape is a second line having a second orientation, different than the first orientation, relative to the vehicle. ### Claim 5 (depends on 4) The system of claim 4, wherein the first orientation is a horizontal orientation relative to the vehicle and the second orientation is a vertical orientation relative to the vehicle.