Danger-Area Camera Switching for Low-Latency Moving Body Alerts
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Solution Overview
Problem
Existing imaging devices do not effectively prevent delays in initiating measures to avoid dangerous events, as they only transmit images at high frame rates to reduce data transfer, without actively avoiding hazards.
Innovation Solution
A control device that includes a detection mechanism to identify dangerous areas, a camera switching mechanism to switch cameras capturing these areas to a low delay mode, and a notification system to inform moving bodies of the hazardous conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If image transmission frame rate is increased to reduce transfer amount, then data transfer efficiency is improved, but response time for dangerous events is delayed
Solution Approach 1:
The patent applies local quality by differentiating frame rate settings across different spatial regions. High frame rates are allocated to dangerous areas requiring immediate attention, while low frame rates are used in safe areas to reduce overall data transfer. This spatial differentiation resolves the contradiction by optimizing both data efficiency and response time locally rather than uniformly across the entire monitoring area.
Solution Approach 2:
The system dynamically adjusts frame rates based on real-time detection of dangerous events. When a dangerous event is detected in a specific area, the frame rate for that area is increased from low to high, enabling rapid response. This dynamic adaptation allows the system to maintain low overall data transfer while ensuring high response capability when needed.
2Measurement precision
If camera captures all areas at high frame rate, then detection precision for dangerous events is improved, but data transfer load increases
Solution Approach 1:
The patent implements local quality by assigning different frame rates to different spatial regions based on their danger level. Only areas identified as dangerous receive high frame rate capture, while other areas use low frame rates. This approach maintains high detection precision in critical zones while significantly reducing the overall data transfer load.
Solution Approach 2:
The system applies partial action by focusing high frame rate capture only on specific dangerous areas rather than uniformly across the entire field of view. This selective application of high frame rates ensures sufficient detection precision for hazardous events while avoiding the excessive data transfer that would result from full-area high frame rate capture.
3Loss of energy
If frame rate is reduced to decrease data transfer, then data transfer efficiency is improved, but timing of dangerous event detection is delayed
Solution Approach 1:
The patent resolves this contradiction by applying different frame rates to different spatial locations based on their risk characteristics. Dangerous areas maintain high frame rates to ensure timely detection, while safe areas use low frame rates to improve overall data transfer efficiency. This localized differentiation ensures detection reliability is maintained where needed without sacrificing overall efficiency.
Solution Approach 2:
The system dynamically switches frame rates based on the presence of dangerous events. When danger is detected, the frame rate for that specific area increases to ensure timely detection and response. This dynamic adjustment maintains detection reliability during critical events while allowing efficiency optimization during normal conditions.
Data Source
AI summary
This control device is provided with: one or more memories storing instructions; and one or more processors configured to execute the instructions to: detect a dangerous area on the basis of sensor information about a management area where a moving body moves; switch a camera for capturing an image of the dangerous area to a low-delay mode; and notify the moving body according to the state of the dangerous area included in the image captured by the camera.