Pedestrian crossing blind area early warning system based on monocular vision

By using monocular vision technology and Fresnel lens array to project dynamic light spots, the blind spot warning system solves the problem that traditional traffic warning systems are difficult to dynamically adapt to complex traffic scenarios, achieving low-cost and high-reliability blind spot warning and improving traffic safety.

CN121838413APending Publication Date: 2026-04-10BAODING YUEHE INFORMATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-23
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing traffic warning systems struggle to dynamically adapt to complex traffic scenarios at intersections without traffic lights, particularly the driver's blind spot problem, leading to frequent pedestrian accidents. Existing equipment, such as radar and binocular vision systems, is either too expensive or computationally complex to be widely adopted.

Method used

It employs monocular vision technology combined with lightweight algorithms and intelligent optical modules. It acquires images through a monocular camera and uses a Fresnel lens array to project dynamic light spots for blind spot warnings. Combined with a three-level warning mechanism and audio prompts, it dynamically adjusts the position of the light spot to guide the driver's attention.

Benefits of technology

It achieves low-cost, high-reliability blind spot warning, reduces hardware costs and computational complexity, shortens driver reaction time, improves pedestrian detection rate, and maintains high visibility in complex environments, making it suitable for dense scenarios such as urban roads and schools.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a pedestrian crossing blind area early warning system based on monocular vision, and belongs to the technical field of traffic safety. The system comprises an image acquisition module, a calibration and partition module, a blind area detection module and a dynamic early warning module. The system collects images of lanes and pedestrian crossings through a monocular camera, divides the pedestrian crossings into a plurality of sub-areas according to lane lines, identifies the shielding relation of vehicles coming from two adjacent lanes, and judges whether a driver of a detected vehicle B is in a blind area or not. If the blind area exists, dynamic light spots are projected to the pedestrian crossing through a Fresnel lens array, the light spot projection position is in a sub-area corresponding to the vehicle where the detected vehicle B is located, and dynamic adjustment is carried out along with movement of people or non-motor vehicles. The system adopts a three-level early warning mechanism, and the risk level is prompted by combining color and flicker frequency. According to the invention, hardware cost and calculation complexity are reduced, the method is suitable for intersections without signal lamps, schools and other scenes, traffic accidents caused by visual blind areas are effectively reduced, and the traffic safety level is improved.
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