Application and function of biometric recognition technology in pedestrian access gates

In today's era of rapid digitalization and intelligence, traditional manual inspection or card swiping methods are gradually unable to meet the needs of efficient and safe management. Biometric recognition technology - such as face recognition, fingerprint recognition and palm print recognition - is widely used in pedestrian Access Gate systems due to its uniqueness, convenience and high security, becoming an important part of smart security, smart buildings and smart transportation.

1. The core advantages of biometric recognition technology
Biometric identification technology is based on the unique physiological characteristics of the human body for identity authentication. Compared with traditional passwords, IC cards or keys, it has the following significant advantages:
●Uniqueness : Each person’s biometric features (such as fingerprints, facial structure, palm prints) are unique and almost impossible to copy or forge.
●Convenience: No need to carry additional equipment (such as access cards or mobile phones), you can quickly pass through by "scanning your face" or "pressing your fingerprint".
●High security : Biometric features are difficult to steal or misuse, effectively preventing security risks such as "punching in on behalf of others" or "tailgating in".
●Efficient management : It can be combined with the background system to realize functions such as personnel attendance, visitor records, blacklist warning, etc. to improve management efficiency.

Application of mainstream biometric technology in pedestrian access gates

(1) Face recognition: seamless access, full of technological sense
Facial recognition is one of the most widely used biometric technologies currently. It uses a camera to capture facial features (such as the relative positions of eyes, nose, and mouth) and compares them with information in a database to achieve rapid identity verification.

Application scenarios:
●Office building/park gates : Employees do not need to swipe their cards, they can pass by "scanning their faces", avoiding the embarrassment of forgetting to bring their cards.
●Subway/airport security check : quickly verify identity, reduce waiting time, and improve travel efficiency.
●School dormitory management : prevent outsiders from entering and record students’ return to the dormitory.

(2) Fingerprint recognition: classic but still reliable
Fingerprint recognition technology is mature and low-cost, and matches fingerprints by collecting features such as the ridges and bifurcation points of the fingerprint. Although it is affected by factors such as moisture and wear of the finger, it still performs stably in most scenarios.

Application scenarios:
●Corporate attendance gate : Eliminate "punching in on behalf of others", after all, everyone's fingerprint is "exclusively customized".
●Laboratory/confidential area : Access is limited to authorized personnel, and fingerprints are more difficult to "lend to others" than keys.
●Gyms/membership venues : Members do not need to bring their cards, just one finger to pass.

(3) Palmprint recognition: low-key but with huge potential
Palmprint recognition authenticates a person by scanning the lines, vein distribution and other features of the palm. Compared with fingerprints, palmprints have a larger area, richer features and are less susceptible to surface wear.

Application scenarios:
●High-end office space : suitable for environments with high requirements for hand hygiene (after all, there is no need to touch the sensor).
●Hospital/sterile area : non-contact identification to reduce the risk of cross infection.
●Payment gates : Some subway stations already support "palm swiping" to pass through the gates, which may replace mobile phone code scanning in the future.

3. The actual role of biometric gates

(1) Improving traffic efficiency
During peak hours, traditional gates may cause congestion due to slow card swiping or malfunctions, while biometric technology can achieve "no-stop passage", which is especially suitable for crowded places such as subway stations and large enterprises.

(2) Strengthening safety management
●Anti-tailgating : Some gates are equipped with infrared detection or 3D cameras to identify whether multiple people are trying to sneak in.
●Blacklist warning : Automatically alert when a suspicious person is identified (such as someone who has resigned but has not cancelled their permissions or a person being pursued by the police).

(3) Intelligent management
Combined with the cloud platform, the biometric gate can generate detailed access records for attendance statistics, visitor management and even temperature monitoring during epidemic periods (such as integrated infrared temperature measurement function).

4. Challenges and future trends
Although biometric technology has obvious advantages, it still faces some challenges, such as:
●Privacy controversy: How to store biological data in compliance with regulations and avoid the risk of leakage.
●Environmental adaptability : Strong light and low temperature may affect the accuracy of face recognition; peeling of fingers may cause fingerprint recognition failure.
In the future, with the advancement of multimodal recognition (such as "face + palm print" dual verification) and AI algorithms, biometric gates will be more accurate and flexible, and may even incorporate emotion recognition (such as automatically opening the door when an emergency is detected).

TENGDA is a professional manufacturer at pedestrian gate and Access Control Biometric Machine， if you are interested in our products, welcome to visit our website www.tengda-smart.com , Thank you!