Intrusion Detection With Position-Specific Alert Timing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image surveillance techniques set a single intrusion duration time for auxiliary warning regions, which does not account for varying intrusion positions, leading to potential delays in alerting for objects that intrude more quickly.
Innovation Solution
An intrusion detection device that detects intrusion positions and associates them with specific time periods, outputting an alert when an object stays in a region for that predetermined time period, allowing for customized duration settings based on intrusion position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single intrusion duration time is set for the auxiliary warning region, then the system is simple to operate, but the alert may be delayed when an object intrudes quickly through a shorter route
Solution Approach 1:
The patent applies local quality by assigning different intrusion duration times to different regions within the auxiliary warning region based on their distances from the warning line. Regions closer to the warning line have shorter intrusion duration times, while regions farther away have longer times. This resolves the contradiction by maintaining operational simplicity while eliminating time loss through position-specific timing adjustments.
Solution Approach 2:
The patent segments the auxiliary warning region into multiple sub-regions based on distance from the warning line, with each segment having its own intrusion duration time. This segmentation allows the system to account for varying intrusion paths and speeds, preventing false negatives while keeping the overall system configuration simple.
2Device complexity
If a single intrusion duration time is used for all intrusion positions, then the device complexity is low, but measurement precision of intrusion timing is insufficient
Solution Approach 1:
The patent implements local quality by measuring the distance from the warning line to each point in the auxiliary warning region and using this distance to determine the intrusion duration time. This provides measurement precision tailored to local conditions without significantly increasing device complexity, as the system uses standard image processing and distance calculation algorithms.
3Adaptability or versatility
If the auxiliary warning region is set in a wide range to detect approaching objects, then detection capability is improved, but the region shape becomes complex conforming to image-capturing range
Solution Approach 1:
The patent applies local quality by defining the auxiliary warning region based on distance thresholds from the warning line rather than using a single complex shape. This allows the region to adapt to different image-capturing ranges and field sites while maintaining a simpler, more manageable structure that is easier to configure and process.
Data Source
AI summary
A setting assistance device includes an acquisition unit, a calculation unit and a determination unit. The acquisition unit acquires coordinates designated by a user for an image capturing a three-dimensional space. The calculation unit calculates coordinates of a position located at a predetermined distance from a position of a part of the three-dimensional space relating to the acquired coordinates. The determination unit determines a region set for the acquired coordinates based on the calculated coordinates.