Gate Device Pressure Sensor System for Tailgating Detection
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Solution Overview
Problem
Existing gate devices fail to efficiently prevent tailgating events, where unauthorized objects pass through by following authorized ones, as they rely on weight sensors that are not effective in distinguishing multiple objects or determining the number of individuals accurately.
Innovation Solution
A gate device system equipped with pressure sensors that detect pressure signals to determine the number of objects and identify potential tailgating events by processing these signals to generate control signals for opening or closing the gate and displaying alerts, using a processing module to analyze the pressure data and determine the presence of unauthorized objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If weight sensors are used to detect objects at the gate, then the gate device can detect the presence of objects, but it cannot accurately distinguish the number of objects or identify tailgating events
Solution Approach 1:
The detection area is divided into multiple trigger regions (first trigger region, second trigger region, third trigger region) with different functions. Each region independently detects objects at different stages (approaching, passing through, leaving), enabling accurate counting and identification of multiple objects including tailgating events.
Solution Approach 2:
The system transitions from single-point weight detection to multi-region spatial detection. By distributing pressure sensors across multiple trigger regions in space, the system can track object positions and movements through different zones, enabling accurate object counting and tailgating detection that weight sensors alone cannot achieve.
2Reliability
If multiple pressure sensors are deployed to detect multiple objects, then the system can identify tailgating events, but the device complexity increases
Solution Approach 1:
Multiple pressure sensors serve multiple functions simultaneously: detecting object presence, counting objects, determining object movement direction, identifying tailgating events, and triggering appropriate gate responses. This multi-functionality reduces the need for separate specialized sensors for each detection task.
Solution Approach 2:
The system combines multiple detection functions (presence detection, counting, position tracking, tailgating identification) into a unified pressure sensor-based detection framework with centralized processing, reducing overall system complexity compared to using separate specialized sensors for each function.
3Productivity
If the gate remains open to allow authorized objects through, then passage efficiency is improved, but unauthorized objects can exploit the open gate for tailgating
Solution Approach 1:
The system continuously monitors object presence and movement through multiple trigger regions, providing real-time feedback on the number and position of objects. Based on this feedback, the control unit dynamically adjusts gate operation (open/close) and displays appropriate alerts, enabling efficient authorized passage while preventing tailgating.
Solution Approach 2:
The system detects and identifies potential tailgating events in advance by monitoring object behavior across trigger regions before the gate opens or while it is open. Alert signals are displayed proactively to warn unauthorized objects, preventing tailgating before it can successfully occur while maintaining efficient passage for authorized objects.
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
Effectively prevents tailgating by accurately detecting the number of objects and alerting unauthorized individuals, ensuring only authorized objects pass through the gate, enhancing security and reducing false passages.
Implementation Method 1
a plurality of pressure sensors may be disposed on a passage region... the pressure sensor module may detect pressure signals caused by the object
Data Source
Figure 1A~1B
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AI summary
A method for controlling a gate device in connection with at least one gate and two frameworks connected to the at least one gate is provided. The method may include identifying an authorization status of an object. The method may include detecting pressure signals caused by the object at a first moment, if the authorization status is satisfied. The method may include determining whether or not an illegal tailgating event occurred based on the pressure signals. The method may further include generating a control signal for opening the at least one gate to facilitate the object to pass through the at least one gate in response to a determination that the illegal tailgating event did not occur.