Security System Using Infrared Sensors for Selective Camera Control
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Solution Overview
Problem
Conventional home security and guard systems face challenges in achieving high-resolution imaging over large areas, resulting in blind spots and excessive redundant data due to the trade-off between coverage and resolution in optical surveillance systems.
Innovation Solution
A security and guard system that divides the monitored area into alert and non-alert zones, utilizing infrared light sensors to detect heat sources and control cameras to capture high-resolution images selectively, with a control host determining appropriate security responses based on the location and characteristics of the heat sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If wide-angle cameras are used for large-area surveillance, then the coverage area is increased, but the image resolution for specific targets deteriorates
Solution Approach 1:
The patent divides the surveillance area into multiple zones (first block and second block) and uses different monitoring approaches for each zone. Infrared sensors provide broad coverage for the entire area, while optical cameras are selectively activated to provide high-resolution imaging only for specific zones of interest, thereby resolving the contradiction between wide coverage and high resolution.
Solution Approach 2:
Instead of continuously operating optical cameras across the entire surveillance area, the system activates optical cameras only partially - specifically when heat sources are detected in certain zones. This selective activation provides high-resolution imaging only where needed, reducing redundant data while maintaining surveillance effectiveness.
2Measurement precision
If high-resolution photography is used for specific targets, then the image quality is improved, but the surveillance coverage area is reduced
Solution Approach 1:
The surveillance system is segmented into two functional layers: infrared sensors that provide wide-area thermal detection, and optical cameras that provide high-resolution imaging of specific segments. This segmentation allows each component to optimize its performance for its designated function without compromising the other.
Solution Approach 2:
The infrared sensor acts as an intermediary that first detects heat sources across the wide surveillance area, then guides the optical camera to focus on specific targets. This intermediary detection mechanism enables the system to achieve both wide coverage and high resolution by coordinating the two sensor types.
3Area of stationary object
If optical cameras are used to cover blind spots, then the surveillance coverage is improved, but the amount of redundant data increases
Solution Approach 1:
The system performs partial surveillance using optical cameras only in zones where heat sources are detected, rather than continuously capturing images across the entire area. This selective imaging dramatically reduces redundant data generation while maintaining complete surveillance coverage through the combination of infrared and optical data.
Solution Approach 2:
Different monitoring qualities are applied to different spatial zones: infrared thermal imaging provides broad coverage for the entire area, while high-resolution optical imaging is applied locally only to zones containing detected heat sources. This local quality differentiation reduces overall data volume while maintaining surveillance effectiveness.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This system enhances image recognition and reduces redundant data by focusing camera resources on specific areas of interest, providing proactive security responses and early warnings while minimizing unnecessary data generation.
Implementation Method 1
at least one infrared light sensor for sensing a first range of the area
Data Source
AI summary
A security and guard system is used to monitor an area. The area is divided into at least a first block and at least a second block. The security and guard system includes at least one infrared light sensor, at least one camera, and a control host. The infrared light sensor senses the entire range of the area. The camera captures partial range of the area. The control host is connected to the infrared light sensor and the camera and, according to a heat source sensed by the infrared light sensor, controls the camera to capture an image corresponding to the sensed heat source, wherein, according to whether the sensed heat source is in the first block or in the second block, the control host performs different security and guard responses.