Can the intelligent standard palm-swipe gate achieve near-instantaneous recognition and zero-congestion passage during the morning rush hour at subway stations?
Publish Time: 2025-12-08
As the main artery of urban public transportation, the efficiency of subway entrances and exits directly affects the travel experience of millions of passengers and the operational order of the city. Especially during the morning rush hour, the instantaneous passenger flow at a single station can reach hundreds of people per minute. Traditional turnstiles often become bottlenecks due to slow card swiping, invalid cards, and tailgating, leading to queues, congestion, and even safety hazards. The intelligent standard palm-swipe gate, with its contactless biometric recognition, high-concurrency processing, and intelligent channel scheduling capabilities, is expected to truly achieve "near-instantaneous recognition, seamless passage, and zero congestion."
1. Palmprint Recognition: A Breakthrough in Speed and Robustness
Compared to fingerprints, which are easily damaged by dirt, and faces, which are easily obstructed or affected by light, palmprint recognition has inherent advantages: a large collection area, abundant feature points, and no need for precise alignment—users simply place their palm naturally 10–20 cm in front of the sensing area, and the system can complete the capture in milliseconds. Current mainstream palmprint recognition algorithms rely on deep learning models and can complete 1:1 or 1:N comparisons within 0.3–0.8 seconds, with an accuracy rate exceeding 99.9%. More importantly, palmprints are highly resistant to interference: wearing thin gloves, slightly damp hands, oil stains, or even partial obstruction do not affect the success rate, making them highly adaptable to the complex environment of subways.
2. Intelligent Channel Design: An Upgrade from "Turret Gates" to "Flowing Corridors"
The "sliding door" structure itself lays the foundation for efficient passage. Compared to traditional three-bar or tap-type gates, sliding gates can open to a width of 80-100 cm, supporting two-way passage or emergency full-open mode, and are equipped with multiple safety mechanisms such as infrared anti-pinch and pressure sensing. The "intelligent channel" further means that the channel has dynamic scheduling capabilities: through AI cameras monitoring queue length and pedestrian density in real time, the system can automatically switch operating modes—activating high-security 1:1 verification during off-peak hours and switching to high-speed 1:N rapid matching during peak hours, while also coordinating with adjacent channels to evenly distribute traffic and avoid localized congestion. Real-world testing data shows that at stations with a reasonable layout of 4-6 channels, the single-channel throughput can reach 40-50 people/minute, and the entire set of gates can easily handle morning peak traffic of tens of thousands of people.
3. Edge Computing + Local Caching: Eliminating Network Dependence and Ensuring Ultimate Response
To avoid the latency risks associated with cloud verification, intelligent standard palm-swipe gates generally adopt an edge computing architecture: the core recognition algorithm is deployed on a local embedded processor, and the user's palm print template is encrypted and stored on the device or regional server, requiring no real-time network connection. Even during network fluctuations or outages in subway stations, identity verification can still be completed using local caching, ensuring uninterrupted passage. Simultaneously, the system supports a "pass first, synchronize later" mechanism, automatically uploading logs afterward, balancing efficiency and audit compliance.
4. Multi-dimensional Integration: Unifying Security, Convenience, and Management
In terms of security, palmprint technology has liveness detection capabilities, effectively defending against attacks using photos or silicone molds. At the management level, the system can interface with the subway ticketing platform, enabling "palmprint as ticket," supporting functions such as credit-based travel, monthly pass binding, and abnormal behavior alerts. For the elderly, children, or disabled individuals, green channels or remote authorization access can be set up, reflecting humanistic care.
The intelligent standard palm-swipe gate is not simply a replacement for traditional turnstiles, but rather a reconstruction of the passage logic centered on "people." It uses biometrics to eliminate medium dependence, intelligent scheduling to mitigate peak passenger flow, and edge computing to ensure rapid response. Given mature technology and reasonable deployment, it is fully capable of achieving a "walk-through, smooth flow" zero-congestion experience during subway morning rush hours.
