Subway Gate Retractable Wing Gate

As the core equipment in subway stations for controlling passenger flow and ensuring orderly passage, subway flap gates integrate mechanical structure, intelligent recognition, and safety management technologies. Their functional design closely aligns with the operational requirements of "high flow, high safety, and high efficiency" in subways, which can be specifically categorized as follows:

I. Core Passage Control Functions

Precise Identity Verification and Release

Supports multiple verification methods: Linked with the subway ticketing system, it can quickly verify passengers' ticketing or boarding permissions by swiping transportation cards (IC cards), scanning codes (QR code tickets, mobile app ride codes), or facial recognition (piloted in some cities).

After permission is confirmed, the flaps (made of metal or acrylic) extend or retract rapidly within 0.5-1 second to open the passage. The passage automatically closes after passengers pass through, with a single channel capable of handling 30-40 people per minute, meeting the high-efficiency flow demands during peak hours.

Direction Control and Anti-Reverse

Uses infrared sensors or radar to detect passenger movement direction, with the default setting as "one-way passage" (e.g., entry gates only allow entry, exit gates only allow exit). If reverse movement is detected (e.g.,强行闯入 from an exit gate), it immediately triggers audible and visual alarms while keeping the flaps closed to prevent fare evasion or chaos.

II. Safety Protection Functions

Anti-Pinch and Anti-Collision Protection

Multiple sets of infrared sensors are installed on both sides of the gate and inside the passage to detect the presence of people, luggage, or other objects in real-time. If an obstacle is detected during flap closure, the system immediately stops and reverses the movement to avoid pinching passengers or damaging items (especially for those carrying large luggage, pushing strollers, or with mobility issues).

Some high-end models feature "flexible anti-collision" design, where the flaps use elastic materials or buffer structures to reduce impact force even in minor collisions.

Emergency Response

Upon receiving emergency instructions from the station (e.g., fire,突发事件), the flap gates can be remotely controlled via the backend system to enter "constant open mode," where all flaps remain open to ensure rapid passenger evacuation.

In case of gate malfunction (e.g., motor jamming, sensor failure), a self-check procedure is triggered, automatically switching to a safe state (e.g., flaps open or remain in place) to prevent channel blockage or passenger entrapment due to equipment failure.

III. Operational Management Support Functions

Passenger Flow Data Statistics and Monitoring

Built-in counting sensors provide real-time statistics of the number of people entering and exiting each gate channel. Data is uploaded to the station management system, helping staff understand passenger flow distribution and adjust the number of open gates promptly (e.g., opening all channels during peak hours).

Some gates are equipped with integrated cameras that link with the monitoring system to record abnormal passage behaviors (e.g., climbing over,强行冲撞), providing evidence for subsequent management and investigations.

Self-Diagnosis and Alerts

Features intelligent diagnostics to automatically check the operational status of components such as motors, sensors, and circuits. If a malfunction is detected (e.g., flap jamming, communication interruption), alerts are displayed on screens or indicator lights (e.g., "Equipment malfunction, please detour"), while alarm information is sent to the backend for quick maintenance response, minimizing impact on passage.

Ticketing Integration and Exception Handling

Real-time communication with the subway ticketing system ensures that if issues arise (e.g., "insufficient card balance," "invalid QR code," "mismatched entry/exit information"), the gate denies passage and displays corresponding prompts (e.g., "Please recharge," "Please pay excess fare"), directing passengers to the service counter for resolution, thereby ensuring accurate ticketing management.