Pedestrian Gate Locking Device with Force-Activated Safety Control
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Solution Overview
Problem
Existing pedestrian gates require external intervention for quick and easy management of flow control during emergencies or malfunctions, as existing systems are slow to respond to unpredictable factors like visibility and personnel availability.
Innovation Solution
An integrated electromechanical system that monitors the force applied to gate components, locking them if excessive, allowing controlled opening based on user force intensity, integrating with electronic control to manage flow variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external intervention is used to open gates during emergencies, then access control is maintained, but response time is delayed due to personnel availability and system speed limitations
Solution Approach 1:
The gate system performs self-service by automatically detecting forced opening attempts through force sensors and autonomously locking the movable members without requiring external security personnel intervention. The system monitors force applied to gates and automatically responds by activating locking mechanisms, eliminating dependency on human response time while maintaining access control reliability.
2Productivity
If gates are designed to allow easy opening for flow control, then pedestrian throughput is improved, but security control is reduced
Solution Approach 1:
The gate system dynamically adjusts its locking state based on real-time force detection. During normal operation, gates remain locked for security. When excessive force is detected indicating a forced opening attempt, the system automatically activates locking mechanisms to prevent unauthorized opening. This dynamic response allows the system to maintain security while enabling controlled flow management, as legitimate users can pass during authorized periods while forced openings are automatically prevented.
3Reliability
If force sensors and electronic control systems are added to detect and respond to forced openings, then security response capability is improved, but device complexity increases
Solution Approach 1:
The force sensors, electronic control system, and locking mechanisms are merged into an integrated electromechanical system where components work together as a unified whole. The force sensors are integrated with the gate structure, the electronic control unit processes sensor signals and coordinates locking actions, and the locking mechanisms are directly coupled to the movable members. This merging reduces overall system complexity compared to separate independent systems while enhancing security response capability through coordinated automatic operation.
Data Source
Figure 1
Figure 2~3
AI summary
A locking device (100) for pedestrian gates, comprising a movable member (1), in which the movable member (1) is constrained to rotate around a shaft (2) and is intended to obstruct the passage through a pedestrian passageway; the device (100) comprises a locking assembly (5) capable of assuming a rest position, in which it is disengaged from the shaft (2), and a locking position in which it is engaged with the shaft (2) to lock the movable member (1), an actuator (7) coupled with the locking assembly (5) and configured for passing the locking assembly (5) from the rest position to the locked position when it is powered, and a control unit (201) configured to supply the actuator. The locking assembly (5) is arranged to move around the locked position when the shaft (2) is urged to rotate. Sensors (9) are provided for detecting the position of the locking assembly (5), connected to the control unit (201), so that, when the locking assembly (5) is in the locked position and is moved beyond a first predefined value, following a rotation of the shaft (2), the sensors (9) detect their movement and the control unit (201) interrupts the actuator supply (7).