Pedestrian Detection Device with Projected Existence Range
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Solution Overview
Problem
Pedestrians crossing roads outside designated safety zones are often overlooked by drivers, leading to accidents, as existing technologies fail to effectively alert drivers to potential hazards in these areas.
Innovation Solution
A detection device equipped with a camera and processor circuitry that captures images of the road and surrounding area, detects pedestrians, calculates their distance, and sets a pedestrian existence range to alert drivers to potential crossers, even outside designated safety zones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If drivers rely on empirical attention to pedestrians in designated safety zones, then safety is improved in crosswalk areas, but pedestrians in non-safety zones remain undetected and accidents occur
Solution Approach 1:
The system performs preliminary detection of pedestrians in non-safety zones before they cross the road. By detecting pedestrians earlier and projecting their potential crossing paths, the system alerts drivers proactively, transforming reactive empirical attention into proactive safety monitoring across all road areas.
Solution Approach 2:
The system introduces an intermediary layer between the driver and the pedestrian hazard. This intermediary is the detection device that automatically identifies pedestrians and projects their crossing paths, providing the driver with advanced warning information without requiring direct visual attention to every potential hazard.
2Ease of operation
If drivers do not consciously pay attention to pedestrians in non-safety zones, then driving task is simplified and attention is maintained on road, but pedestrian hazards are missed
Solution Approach 1:
The detection system performs self-service by automatically detecting pedestrians and generating alerts without requiring driver intervention. The system monitors the environment continuously and provides warnings autonomously, freeing the driver from the burden of constant pedestrian surveillance while maintaining safety.
Solution Approach 2:
The system establishes a feedback loop where pedestrian detection information is continuously fed back to the driver through alerts and visual projections. This feedback mechanism ensures that drivers are informed of pedestrian hazards in non-safety zones without requiring sustained conscious attention, as the system actively communicates risks to the driver.
3Loss of information
If a detection system projects pedestrian crossing paths, then driver awareness is enhanced, but system complexity increases
Solution Approach 1:
The system extracts the essential information needed for safety - the pedestrian's presence, location, and projected crossing path - from the complex visual data captured by the camera. By isolating and presenting only the critical hazard information through projections and alerts, the system reduces information overload while maintaining comprehensive safety monitoring.
Solution Approach 2:
The system segments the detection task into distinct functional components: camera capture, pedestrian detection, crossing path projection, and driver alerting. This segmentation allows each component to be optimized independently and simplifies the overall system architecture by dividing the complex detection and warning function into manageable modules.
Data Source
AI summary
According to an embodiment, a detection device includes a camera, a memory, and processor circuitry. The camera is connected to an internal bus and configured to acquire an image including an area in which a mobile body is movable. The memory is connected to the internal bus and configured to store data and a program. The processor circuitry is connected to the internal bus and configured to detect at least the area, a mark on the area, and a person, from the image, calculate a first distance between the person and a position of the device when the person is in the area, and set a range according to a result of the detection and the first distance.