Bolan - Leading Security Turnstile Gate Manufacturer & Supplier Since 2011
Giving Tailgaters the Red Card: IR Sensors in Speed Gates
In the high-stakes matches of the 2026 World Cup, referees carry a powerful tool to maintain order, safety, and the integrity of the game: the Red Card. When a player commits a deliberate professional foul, the referee does not hesitate. The red card is drawn, the offender is ejected from the pitch, and the threat is neutralized.
In the realm of corporate and stadium security, facility managers face their own version of a "professional foul" every single day. It is called tailgating (or piggybacking)—the act of an unauthorized person following an authorized user through a secured door or gate.
You can invest millions of dollars in encrypted RFID badges, biometric facial recognition, and cybersecurity firewalls, but if a malicious actor can simply walk through your lobby by following closely behind a polite employee, your entire defensive line collapses.
The "Professional Foul" of Corporate Security
Why is tailgating so common, and why is it so dangerous?
The vulnerability stems from basic human psychology. We are socially conditioned to be polite and to hold doors open for our colleagues. Hackers, corporate spies, and opportunistic thieves understand this "politeness problem" and exploit it flawlessly. By wearing a business suit, holding a cup of coffee, and acting confident, an intruder can easily tailgate their way into a Class-A office building, a data center, or a VIP stadium lounge.
Once inside, the physical breach rapidly escalates into a data breach. Unlocked server rooms, confidential documents on desks, and unattended laptops become easy targets. For European and multinational companies, a tailgating incident can directly lead to a violation of GDPR regulations, resulting in catastrophic financial penalties.
The Referee's Eyes: How High-Density IR Matrices Work
Traditional tripod turnstiles use a mechanical arm to physically block a second person. However, in high-end corporate lobbies or VIP stadium suites, architects prefer the elegant, frictionless experience of optical speed gates (glass swing barriers).
Because speed gates rely on glass panels that open and close, their true security lies in the invisible technology hidden within the stainless-steel cabinets: the Infrared (IR) Sensor Matrix.
If you look closely at the interior walls of a premium Bolan Security speed gate, you will notice dark acrylic strips. Behind these strips is a high-density array of IR transmitters and receivers.
- When powered on, these sensors create an invisible, high-resolution grid of infrared beams across the entire passageway.
- As a person walks through, their body breaks specific beams in a specific sequence.
- The advanced logic board inside the turnstile calculates the size, shape, speed, and direction of the mass in milliseconds.
Issuing the Red Card: Detecting Specific Intrusion Tactics
With a high-density IR matrix, a Bolan speed gate can instantly identify the difference between normal passage and a security breach. Here is how our advanced logic boards defeat the three most common unauthorized entry tactics:
1. The Classic Tailgate (Following Too Closely)
The Foul: An intruder walks immediately behind an authorized employee (sometimes within inches), hoping to slip through before the glass panels close.
The Red Card: As the authorized user breaks the entry sensors, the system logs their movement profile. If the IR matrix detects a second distinct mass breaking the beams even a fraction of a second later, it recognizes two separate entities. The system instantly triggers an audible alarm, flashes red LED warning lights, and violently snaps the glass barriers shut the moment the first person clears the safety zone. The tailgater is blocked.
2. Piggybacking (The Side-by-Side Sneak)
The Foul: Two people squeeze together side-by-side or front-to-back, attempting to appear as one large person to fool the optical sensors.
The Red Card: This is where the density of the IR matrix proves its worth. The high-resolution sensors analyze the overall volume and width of the object in the lane. If the system detects a shape that is abnormally long or wide—indicating the mass of two human bodies—it denies access, refuses to open the glass panels, and triggers the security alarm.
3. Wrong-Way Entry (The Counter-Attack)
The Foul: An intruder waits on the unsecured side of the lobby. When an authorized employee exits the building, the intruder quickly rushes into the lane against the flow of traffic before the gate can close.
VAR for Your Lobby: Minimizing False Alarms
In modern football, the Video Assistant Referee (VAR) is used to prevent the referee from making the wrong call. In access control, nothing is more frustrating than a "false alarm"—for example, a gate slamming shut on an employee simply because they are pulling a rolling suitcase.
Bolan Security speed gates feature built-in algorithmic intelligence that acts as your lobby's VAR. The system is programmed to recognize the typical size and trajectory of common objects. Because a rolling suitcase, a backpack, or a delivery cart hangs low to the ground and follows a predictable path directly connected to the authorized user, the IR matrix maps it as "luggage" rather than a trailing person.
Upgrade Your Defense with Bolan Security
Relying on the "honor system" or outdated, low-sensor gates leaves your facility vulnerable to the most common physical security threat in the world. Upgrading to advanced optical speed gates is the only reliable way to automate your lobby security and protect your corporate assets.
At Bolan Security, our engineering team has spent years perfecting the infrared sensor algorithms inside our speed gates. Designed to handle the high throughput of busy corporate headquarters and VIP stadium entrances, our systems offer a perfect balance of architectural elegance, frictionless employee access, and ruthless tailgating detection.
Is your facility letting professional fouls go unpunished?
Give tailgaters the red card. Visit us to explore our complete range of anti-tailgating optical speed gates, or contact our security specialists today to request technical data sheets and discuss how our infrared technology can protect your perimeter.
