Investigation Area Determination for Disaster Sensor Analysis
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Solution Overview
Problem
Existing technologies face challenges in accurately determining an appropriate investigation area for disaster situations, as they either fail to grasp detailed disaster situations due to the use of synthetic aperture radar or cannot acquire images necessary for investigation when a disaster occurs.
Innovation Solution
An investigation area determination device and method that extracts candidate areas using sensor information from a sensor information acquisition device, analyzes ground surface changes from a ground surface measurement device, and determines an appropriate investigation area for disaster situation investigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If synthetic aperture radar is used to grasp disaster situation, then broad coverage is achieved, but detailed situation cannot be grasped
Solution Approach 1:
The patent divides the investigation area into multiple candidate areas based on sensor information, then selectively analyzes ground surface changes in specific candidate areas. This segmentation allows the system to maintain broad coverage while focusing detailed analysis on the most relevant areas, resolving the contradiction between coverage area and detail resolution.
Solution Approach 2:
The patent applies different analysis methods to different candidate areas based on their specific characteristics and ground surface change patterns. By tailoring the investigation approach to local conditions, the system achieves both comprehensive coverage and detailed analysis where needed, eliminating the trade-off between broad area and fine detail.
2Measurement precision
If vehicle-mounted imaging unit is used to capture disaster images, then detailed images can be acquired, but images cannot be acquired when disaster occurs
Solution Approach 1:
The patent uses sensor information acquired before the disaster to extract candidate areas and determine investigation areas in advance. This preliminary action ensures that the investigation area is predetermined before the disaster occurs, allowing reliable image acquisition from fixed observation points even when vehicles cannot access the disaster site.
Solution Approach 2:
The patent introduces ground surface change analysis as an intermediary method to identify investigation areas. By analyzing ground surface changes from pre-disaster sensor information, the system can determine where images are most needed without requiring direct vehicle access, thus improving image acquisition reliability while maintaining detail quality.
3Measurement precision
If comprehensive sensor information is collected, then accurate investigation area determination is achieved, but processing time and complexity increase
Solution Approach 1:
The patent extracts only the necessary sensor information relevant to ground surface change analysis to determine investigation areas. By selectively extracting and processing only the essential data elements rather than handling all available sensor information, the system achieves accurate investigation area determination while significantly reducing processing time and complexity.
Solution Approach 2:
The patent applies partial analysis by focusing ground surface change detection on specific candidate areas identified from sensor information, rather than comprehensively analyzing the entire region. This partial action approach maintains high determination accuracy for the most critical areas while reducing overall processing time and computational burden.
Data Source
AI summary
In order to determine an appropriate investigation area, this investigation area determination device includes: a candidate area extraction means for extracting a candidate area for an investigation of the state of a disaster, by using sensor information that has been acquired by a sensor information acquisition device; a ground surface information acquisition means for acquiring a ground surface change in the candidate area, the ground surface change being the results of analysis using the results of measurement carried out by a ground surface measurement device; and an investigation area determination means for determining, by using the ground surface change, an area for the investigation of the state of a disaster in the candidate area.