Motor-Driven Flap Access Gate with RFID Detection
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Solution Overview
Problem
Access control gates in public environments, such as ski lifts and metro stations, often cause delays and hassles for inexperienced patrons due to complex passage procedures and potential interference with baggage or clothing, leading to reduced throughput.
Innovation Solution
A motor-driven access control gate with two flaps that protrude from the lane boundaries, equipped with a contactless RFID reader and photoelectric barriers, allowing patrons to pass without restrictions and ensuring swift closure behind them to prevent unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If turnstile barriers are used to close the access lane, then access control is enforced, but they hook into patrons' baggage or clothes and create hassles
Solution Approach 1:
The patent replaces the mechanical turnstile barrier system with a flap-based mechanical guidance system. The flaps are motor-driven and pivot to form a closed gate threshold, then open to guide patrons through the lane without mechanical hooks that could catch baggage or clothing. This substitution maintains access control functionality while eliminating the harmful mechanical interaction with patrons.
2Ease of operation
If flaps are used to form a closed gate threshold, then patron behavior is guided and access control is maintained, but the flaps must open quickly to allow passage
Solution Approach 1:
The patent employs motor-driven flaps that can dynamically adjust their position. The flaps pivot on vertical axes and are controlled by motors that can quickly change the flap position from closed to open. This dynamic control allows the system to maintain the closed threshold position for guidance, then rapidly open when access is authorized, balancing guidance functionality with passage speed.
3Reliability
If photoelectric barriers are used to detect patron passage, then unauthorized access is prevented, but unintentional detection may occur
Solution Approach 1:
The patent uses photoelectric barriers that detect when a patron has completely passed through the gate threshold by monitoring the interruption of detecting beams. The system provides feedback to the control unit, which processes this information to determine when to close the flaps. This feedback mechanism ensures that flaps close only after confirmed patron passage, preventing both unauthorized access and unintentional detection errors.
4Reliability
If the gate threshold is closed to control access, then security is improved, but patron throughput is reduced
Solution Approach 1:
The patent implements periodic opening and closing of the flap gate threshold based on detected patron approach and passage. The flaps close to secure the threshold when no patron is present, then open periodically when a patron approaches and is authorized. This periodic action maintains security by keeping the gate closed most of the time while enabling efficient throughput by opening promptly when needed.
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 enables high-throughput passage without hassle, ensuring that even inexperienced patrons can navigate the gate smoothly, while preventing unauthorized access and allowing for easy maintenance and adjustment of the gate's position.
Implementation Method 1
a contact less RFID-reader which is connected to a software controlled verification system
Implementation Method 2
means to detect the passage of a patron through the gate threshold comprising two or more photoelectric barriers having first and second spaced detecting beams
Data Source
AI summary
An access control gate with a mechanical guide forms one or more access lanes for patrons. A contactless access reader which is connected to a software controlled verification system identifies access right of patrons shortly before the person approaches a gate threshold formed by two motor driven flaps which when closed protrude into the access lane from left and right of the lateral lane boundaries. A verification system activates the flaps when an access right has been granted. Two or more photoelectric barriers define a detection zone behind the gate threshold and detect the passage of patrons through the gate threshold and the exit of the detection zone. The flaps are closed with highest possible speed after the patron has left the detection zone regularly, and are moved with low speed if an irregular passage is detected.