Ceiling Tile Positioning Unit for Unobtrusive Access Control
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Solution Overview
Problem
Conspicuous positioning units in access control systems, particularly due to large horn antennas, can be aesthetically unappealing and may not seamlessly integrate with existing infrastructure, such as drop ceilings.
Innovation Solution
A positioning unit integrated into a standard ceiling tile format, featuring a patch array antenna and a pinhole camera, which allows for both directional and omnidirectional wireless signal detection and video analytics, while being embedded or concealed within the tile substrate, maintaining a sleek appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large horn antenna is used for directional signal detection, then the antenna can effectively detect wireless signals, but the positioning unit becomes conspicuous and aesthetically unappealing
Solution Approach 1:
The patent transitions from a traditional cantilevered horn antenna design to a flat patch array antenna design that integrates into the ceiling tile plane. This dimensional change allows the antenna to maintain signal detection functionality while becoming visually concealed within the ceiling infrastructure, resolving the contradiction between reliability and aesthetics.
Solution Approach 2:
The patent combines the positioning unit with the ceiling tile structure, merging the antenna system into the existing building infrastructure. The patch array antenna is integrated directly into the ceiling tile, making the positioning unit unobtrusive while maintaining its wireless signal detection capability.
2Shape
If a ceiling tile format is used for the positioning unit, then aesthetics and integration are improved, but the antenna must be embedded or concealed within the tile substrate
Solution Approach 1:
The ceiling tile serves multiple functions: it maintains the building's aesthetic appearance, provides structural support, and integrates the positioning unit with its antenna system. This multi-functionality approach allows the same component to fulfill both aesthetic and technical requirements without increasing overall system complexity.
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
The solution provides unobtrusive and effective access control and user tracking, enhancing security systems with improved aesthetics and integration into building infrastructure, while enabling facial recognition, gesture analysis, and tailgate prevention.
Implementation Method 1
The positioning unit includes an antenna, which is installed in a drop ceiling system, for detecting wireless signals transmitted by user devices
Implementation Method 2
A pinhole camera connected to the control module can be embedded or inserted into the ceiling tile insert such that it protrudes from the exposed bottom surface, enabling video capture for video analytic functions
Data Source
AI summary
A positioning unit of an access control and user tracking system includes an antenna, which is embedded in the substrate of a ceiling tile of a drop ceiling system. The antenna can be observable (embedded in the substrate of an exposed surface of the ceiling tile), or, alternately, not observable (concealed within the substrate of the ceiling tile). A pinhole camera for capturing video information is inserted through the substrate of the ceiling tile and protrudes from the exposed surface of the tile. A ground plane covers the unexposed surface of the ceiling tile. A control module, comprising a controller, a network interface, an antenna controller, a power supply, an omni directional antenna and/or memory for the positioning unit, is positioned on the unexposed surface of the tile.


