How does a subway turnstile work?

subway turnstile

Last updated on: March 22nd, 2024 21:10 pm

What is the subway turnstile?

Subway turnstiles (also called metro turnstiles) are modern automated access control devices used to control the flow of people entering and exiting subway stations. They are mainly used in urban rail transit systems, including public places such as subways, buses, airports, and exhibition halls.

Metro turnstiles are usually made of high-grade 304 stainless steel material, which can effectively manage the entry and exit of passengers, prevent passengers from boarding without tickets, and disrupt the order. The emergence of subway turnstile gates has greatly improved the operational efficiency of subway stations and ensured the safety of passenger travel.

Generally, the flap barrier turnstile is selected for the subway turnstile, because the subway station is a place with close personnel, the passenger flow is relatively large, and the traffic speed of the flap barrier turnstile is also relatively fast. Of course, swing turnstile and tripod turnstile are also used in some cases, which depends on the flow of people and the needs of specific occasions.

Working principle:

How does a subway turnstile work?

The subway turnstile is equipped with various hardware devices such as control circuits, sensors, and card readers inside. It is usually connected to the computer control system in the subway station to achieve diversified operations. It can quickly respond to and process passenger entry and exit requests.

When a passenger swipes their ID card or passes through the subway turnstile gate, the control system of the metro turnstile gate will open the corresponding wing upwards. If the passenger’s identity information and balance meet the requirements, they can enter the station through the wing, otherwise the metro turnstile gate will refuse to enter.

When passengers need to leave the station, they need to swipe their card again to pass through the subway turnstile gate. At this time, the metro turnstile gate will close the wing downwards and can only be reopened after passengers pass, ensuring that each person can only enter and exit once.

subway turnstile

When a passenger passes with a valid ticket, the traffic light indicator on the subway turnstile gate will switch to green, opening the channel; On the contrary, it will remain red to prevent the use of entry and exit channels. Meanwhile, the metro turnstile gate system can also achieve intelligent monitoring and data analysis through networked control.

The subway turnstile gate has effectively controlled the entry and exit of passengers through identity recognition, ticketing system, and intelligent control technology. When passengers swipe their cards through the metro turnstile gate, the metro turnstile gate will recognize their identity information and the ticketing situation in real time, confirm their legal entry and exit status, and intelligently judge and control whether they pass or not.

At the same time, the metro turnstile gate also has automatic opening and emergency response functions, which can quickly respond to emergency situations and ensure the smooth travel of passengers.

The subway turnstile is a very necessary and important access control equipment, which can achieve automated entry and exit, improve passenger flow efficiency, and ensure the safe and orderly operation of the subway.

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    Functions of Subway turnstile:

    The main functions of Subway turnstiles include managing pedestrian flow, regulating pedestrian entry and exit, enabling only one person to pass through at a time, as well as toll and access control management. They control the entry and exit of passengers through identity recognition systems such as card swiping, document scanning, barcode/QR code, biometric recognition, etc., ensuring safety and improving traffic efficiency.

    1. Ticket checking function: It is the core function of the metro turnstile. The subway turnstile is equipped with ticket-checking equipment, such as ticket card readers or QR code scanners. Passengers usually need to purchase valid tickets through ticket cards or mobile payments, and perform card swiping or QR code scanning operations at the gate to complete the verification and ticket checking process of the boarding voucher.

    2. Safety protection function: Control the number of people entering and exiting the station. Ensure the safety and operational efficiency of the subway system, and prevent illegal personnel from entering The subway turnstile has a triple anti-pinch and anti-collision function, ensuring the safety of pedestrians.

    3. Recording function: The subway turnstile adopts technologies such as facial recognition and fingerprint recognition to achieve more convenient passenger identification and management. It also has the function of recording passenger flow and ride information. Each passenger passing through the metro turnstile will leave corresponding records, including information such as time, mode of travel, and type of valid ticket held. These records are of great significance for subway operation management and data analysis.

    4. It has a powerful anti-tailgating data analysis function, and the subway turnstile can effectively calculate whether there is a tailgating during passage, preventing unauthorized personnel from following authorized personnel through the gate; The metro turnstile has various information displays (such as channel indications, ticket information displays, alarm sound and light prompts, etc.).

    5. The metro turnstile gate has self-detection, self-diagnosis, and automatic alarm functions, controlled by a microcomputer, and displays fault codes when faults occur. Convenient for users to maintain and use;

    6. The subway turnstile has multiple modes of passage selection functions: to meet different passage requirements, it can be set as a two-way card swiping or one-way card swiping with free passage, or the metro turnstile gate can be set as a normally open mode during special periods to meet the needs of a large number of people passing through.

    7. Emergency response function: The subway turnstile is a part of the safety management of the subway system. When a fire, earthquake, or other emergency occurs, the subway gate can quickly respond and implement emergency measures through emergency buttons or linkage with other safety equipment to ensure the safety of passengers.

    8. Provide accessible passage. Equipped with barrier-free passages to facilitate the entry and exit of special groups such as those with limited mobility.

    subway turnstile

    Advantages of subway turnstile:

    Compared to traditional manual ticket-checking methods, subway turnstiles have the following advantages:

    1. Preventing terrorist attacks: The metro turnstile can effectively prevent terrorist attacks and illegal intrusions by installing metal detectors and X-ray machines to inspect the items carried by passengers.

    2. Improve security: The subway turnstile can verify the identity of passengers and conduct ticketing checks, ensuring that only passengers holding valid tickets and identification documents can enter the subway platform and carriages, effectively improving the safety of subway operations.

    3. Improve operational efficiency: The subway turnstile can automatically recognize the identity of passengers and ticket information, thereby reducing the time and cost of manual ticket checking, and improving the efficiency and convenience of subway operation.

    4. Data management: The subway turnstile can automatically record passenger entry and exit information and ticketing information, thereby achieving real-time monitoring and management of subway operation data, providing more scientific and accurate data support for subway operations.

    Composition of subway turnstile:

    The subway turnstile is characterized by fast, multi-function, and fashion, with trapezoidal inclined bridge shape and fan-shaped gate wings; The width of the chassis is small, saving space, beautiful, comfortable, and harmonious. The metro turnstile is generally driven by a high-end DC brushless motor, with good synchronization, stable operation, low noise, and fast traffic speed.

    The chassis is made of high-quality stainless steel, and all internal components are treated with rust and corrosion prevention, which is durable. Through more than 10 pairs of military-grade high-performance infrared detectors, the functions of anti-tailing, detection of illegal traffic, anti-pinch, anti-collision, and direction discrimination can be accurately realized. Multiple anti-pinch designs to maximize the personal safety of pedestrians.

    The subway turnstile mainly consists of the following parts:

    1. Chassis: This is the external structure of the subway turnstile gate, usually composed of a metal frame and plastic sheets, which can be fixed on the ground or wall, and has functions such as waterproof, dustproof, and anti-corrosion.

    2. Mechanism: This is the core component of the metro turnstile gate, including the servo motor, reducer, clutch, transmission mechanism, etc., responsible for the motion control of the subway turnstile gate.

    3. Control system: Including motors, control circuit boards, fuses, circuit breakers, etc., control the opening and closing of turnstiles to ensure the normal operation of equipment.

    4. Sensors: Sensors such as infrared and ultrasonic are used to detect the dynamic information of passengers entering and exiting the station, record the number of people passing through, and the proportion of people at the station, and serve as a signal source for controlling the opening and closing of turnstiles.

    5. Blocking wing. Usually composed of two movable obstacles, it can be a barrier that rotates in both directions or vertically.

    6. Payment system. Devices such as self-service ticket vending machines and card readers are used to ensure the charging of subway operations and detect whether each passenger passing through the subway turnstile gate has completed payment.

    These parts work together to achieve the entry and exit control function of the subway turnstile gate.

    subway turnstile

    Video of metro turnstile:

    At the end of the article, please check out our video on the metro turnstile:

    Above is all the content of the subway turnstile, if you have any questions about the subway turnstile solutions, please contact us to discuss. Mairs provides a high-quality turnstile gate for sale at an affordable price. We can also customize the turnstile gate according to your requirements. Our aim is to provide high-quality products and the best service. All of our products get 2 years warranty. If there is an exception or technical support during the use of the turnstile gate, We will offer you the most satisfactory reply and provide the best service.

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