Smart Fence Wall Camera System for Drone Intrusion Detection
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Solution Overview
Problem
Conventional security systems, including cameras and physical barriers, are inadequate for detecting and tracking intrusions, especially by drones and UAVs, due to limitations in field of view, detection accuracy, and the ability to classify and track targets effectively.
Innovation Solution
A smart wall system comprising a combination of cameras, including a hybrid stereoscopic camera for lower fence coverage, a long-range camera for in-depth detection, and Pan-Tilt-Zoom (PTZ) cameras for zooming and tracking, along with protective bulletproof cylinders for camera protection, to enhance detection and tracking capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single camera is used for intrusion detection, then the device complexity is reduced, but the detection accuracy and target classification capability are insufficient
Solution Approach 1:
The detection system is segmented into three specialized camera components: a first camera for lower portion fence coverage, a second camera for in-depth long-range detection, and a third PTZ camera for zoomed inquiry and tracking. Each camera segment performs a specific detection function, improving overall detection accuracy while distributing system complexity across modular components.
Solution Approach 2:
The system merges multiple camera types with different capabilities into a unified detection system. The first camera (lower FOV), second camera (in-depth FOV), and third PTZ camera (zoom capability) are combined and coordinated through a control unit, achieving comprehensive detection accuracy that no single camera could provide alone.
2Area of stationary object
If the camera Field of View is directed closer to the fence, then the detection coverage near the fence is improved, but the in-depth detection capability is reduced
Solution Approach 1:
The detection space is segmented into two zones covered by different cameras: the first camera covers the lower portion and near-area with a downward-directed FOV, while the second camera covers the far-field and in-depth areas with a horizontal/forward FOV. This spatial segmentation allows each camera to optimize its FOV direction for its specific detection zone.
Solution Approach 2:
The system adds a spatial dimension to FOV coverage by deploying cameras at different positions and orientations. The first camera looks downward at an angle to cover the near fence area, while the second camera looks forward at a different angle to cover distant areas, creating multi-dimensional spatial coverage that resolves the trade-off between near and far detection.
3Reliability
If conventional cameras are used without protective structures, then the ease of installation is improved, but the reliability against physical damage is reduced
Solution Approach 1:
The camera is nested within a protective bulletproof glass cylinder that is installed into a perforation in the wall. The camera housing is nested inside the cylindrical protective structure, which itself is nested within the wall perforation. This nested arrangement provides robust physical protection while maintaining a compact integrated structure.
Solution Approach 2:
The bulletproof glass cylinder acts as a protective shell that encloses the camera. This transparent shell provides physical protection against bullets and debris while maintaining optical transparency to allow the camera to function. The cylindrical shape provides structural strength with minimal interference to the camera's field of view.
Data Source
AI summary
A system for fence protection, comprising a first camera in a hybrid stereoscopic configuration, being directed to the area along the lower portion of the fence; a second camera connected to the first camera, for informing the first camera about any potential detection performed by the first camera, the second camera having configuration and optics designed for long ranges, for obtaining in-depth field of view, with pan and tilt capabilities, for allowing scanning and in-depth detection operations; a third inquiring Pan-Tilt-Zoom (PTZ) camera with high zoom capability, including visible and IR ranges, the third PZT camera is operated by the first camera by transmitting, to the third PZT camera, the location where detection occurred, thereby triggering the third PZT camera to perform scanning operations in a predetermined area around the location.