System for traffic monitoring comprising at least two different sensors installed on fixed infrastructures such as bridges or buildings

Abstract

An infrastructure-based warning system (10), where the system is used as part of an intelligent intersection or intelligent road, and is used to detect various objects, such as vulnerable road users (VRUs) and vehicles. The system includes both cameras (22A) and radar (22B), the operation of which is optimized based on which of the camera or radar is least affected by current conditions. This optimization includes the use of a marker (30), attached to infrastructure in the field of view of the detection device, such as a camera, to be optimized. If the camera accurately and consistently detects the marker, then camera detections of objects are weighted with more significance than the detection of objects using radar. If on the other hand, if the camera is unable to accurately detect the marker because of ambient conditions, then the greatest amount of confidence is placed on radar detection.

Description

technical field [0001] The present invention generally relates to a system for detecting objects using various types of detection devices, which is optimized based on whether the operation of one of the detection devices is impaired. The system can be integrated into local infrastructure and can detect vehicles and pedestrians that may not be easily visible to other drivers. Background technique [0002] Signaled and unsignalized intersections and crosswalks for pedestrians present one of the most dangerous areas where accidents, such as vehicles hitting vulnerable road users such as pedestrians, can occur. In addition, pedestrians are also distracted by cell phones, tablets, billboards, other pedestrians, etc., which may limit the pedestrian's ability to be fully aware of any hazards from vehicles that may be driving unsafely. [0003] One of the solutions for preventing accidents at various intersections is to implement sensors and other types of detection devices that ar...

AI Technical Summary

Problems solved by technology

[0004] The functionality of these detection devices may be limited under various conditions

An example of a detection device is a camera, and the functionality of the camera may be affected by environmental conditions such as snow, rain, fog, angle of the sun, etc., all of which may hinder or otherwise impair the effectiveness of the camera

Conversely, radar is not affected by the above conditions, but is less accurate than cameras in detecting or classifying individual objects when conditions are more ideal

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