Intrusion Detection With Position-Based Alert Timing
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Solution Overview
Problem
Existing image surveillance techniques for intrusion detection often result in delayed responses due to a single, fixed intrusion duration time that does not account for varying intrusion positions, leading to objects intruding into warning regions before the set time elapses.
Innovation Solution
An intrusion detection device that detects intrusion positions and associates them with specific time periods, outputting alerts when objects stay in designated regions for those time periods, allowing for position-dependent alert timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single fixed intrusion duration time is set for the auxiliary warning region, then the system is simple to operate, but the response is delayed and objects may intrude into the warning region before the set time elapses
Solution Approach 1:
The patent applies dynamics by making the intrusion duration time variable rather than fixed. The system automatically adjusts the intrusion duration time based on the detected intrusion position, allowing the time parameter to change dynamically according to spatial conditions. This resolves the contradiction by eliminating the need for manual configuration while achieving position-appropriate response timing.
Solution Approach 2:
The patent changes the parameter of intrusion duration time from a static value to a variable parameter that depends on intrusion position. By establishing a correspondence between intrusion positions and intrusion duration times, the system adapts the time parameter to match the spatial context, thereby optimizing response timing without requiring user intervention.
2Device complexity
If a single fixed 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 segments the auxiliary warning region into multiple intrusion positions or zones. By dividing the continuous space into discrete position categories, the system can assign different intrusion duration times to each segment. This segmentation enables precise timing for each position while maintaining manageable system complexity through structured categorization.
Solution Approach 2:
The patent applies local quality by assigning different intrusion duration times to different intrusion positions. Instead of using a uniform time parameter across the entire region, the system tailors the time parameter to each local position, creating position-specific detection characteristics that improve timing precision without requiring complex global reconfiguration.
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 segments the wide auxiliary warning region into multiple intrusion positions, allowing the system to handle the large detection area through positional categorization rather than a single complex shape. This segmentation enables the system to maintain simple regional definitions while achieving comprehensive detection coverage through multiple position-specific rules.
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.