Directional Traffic Alert Devices for Blind-Corner Collision Prevention
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Solution Overview
Problem
Collisions frequently occur in industrial settings like warehouses and factories due to pedestrians and vehicles sharing close proximity in intersecting pathways, particularly at blind corners where visibility is obstructed, leading to potential hazards and inefficiencies in facility operations.
Innovation Solution
Implementing traffic alert devices mounted at strategic locations to detect oncoming traffic and generate visual alerts, using directional motion sensors to distinguish between approaching and receding vehicles, thereby reducing false positives and negatives, and optimizing the number of devices required for comprehensive coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traffic alert devices are deployed at all intersections to maximize safety coverage, then collision prevention capability is improved, but device quantity and cost increase significantly
Solution Approach 1:
The patent applies local quality by deploying traffic alert devices selectively at specific high-risk intersections rather than uniformly at all intersections. The system identifies locations with blind corners or limited visibility where collision risk is highest, concentrating resources at critical points while reducing overall device quantity.
Solution Approach 2:
The patent employs preliminary action by using motion sensors to detect approaching vehicles before they reach the intersection. The system activates visual alerts in advance when a vehicle is detected in the sensor's field of view, allowing pedestrians sufficient time to react and clear the intersection before the vehicle arrives.
2Measurement precision
If motion sensors are activated continuously to detect all traffic, then detection accuracy is improved, but power consumption increases
Solution Approach 1:
The patent applies periodic action by activating motion sensors only during specific periods or conditions rather than continuously. The system monitors for vehicle detection and activates the sensor field periodically, maintaining detection capability while significantly reducing overall power consumption during low-traffic periods.
3Reliability
If visual alerts are activated for all detected vehicles, then safety coverage is improved, but false alarms increase reducing operational efficiency
Solution Approach 1:
The patent applies local quality by directing visual alerts specifically toward pedestrians in the intersection area rather than activating alerts universally. The system uses the sensor's directional field of view to determine which intersections require alert activation, providing targeted safety coverage while avoiding false alarms in areas where no pedestrians are present.
Data Source
AI summary
Traffic alert devices and methods of using the same are disclosed. A traffic alert device includes a housing having a first surface to face in a first direction toward a first area, and a directional motion sensor carried by the housing. The sensor monitors motion in a second area different than the first area, the second area being in a second direction angled relative to the first direction. The traffic alert device further includes a light emitter carried by the housing, the light emitter positioned to emit light that emanates from the first surface. The light emitter generates a visual signal in response to the sensor detecting an object in the second area approaching the sensor.