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VNA (Turret) Truck Collision Avoidance System

VNA Collision Avoidance System: Laser-Guided Safety for Turret Trucks

The Engineering Behind Zero-Incident Narrow Aisle Operations

In Very Narrow Aisle (VNA) environments, the margin for error is non-existent. Standard forklift safety lights are insufficient when an operator’s visibility is obstructed by high-density racking. The Teknect VNA Collision Avoidance System is a type-examined, active safety integration that transforms passive Turret Trucks into Intelligent Managed Assets.

Utilizing Class 1 High-Precision Laser Scanners, the system creates a dynamic safety envelope that monitors the aisle in real-time. Unlike basic sensors that simply beep, Teknect’s evaluation electronics are integrated directly into the vehicle’s Drive Control Unit (DCU), allowing for autonomous speed reduction and Controlled Emergency Braking the moment a pedestrian or obstacle is detected.

The Automated Safety Lifecycle: How VNA Protection Works

Our system eliminates human error by automating the protection cycle from the moment the truck enters the racking:

01

Intelligent Aisle-Entry Activation

The system uses RFID or Reflective Aisle-Sensing to automatically arm the laser scanners the moment the vehicle enters a narrow aisle. This ensures that safety protocols are active exactly when they are needed most, without requiring operator intervention.

02

Adaptive Zone Scaling & Speed Management

Protection zones are not static. The Teknect system employs Adaptive Monitoring Logic that adjusts the length of the “Warning” and “Stop” zones based on the vehicle’s current velocity and load height.
• High-Speed Travel: The laser reaches further to allow for a safe braking distance.
• Low-Speed Maneuvering: The zone tightens to allow for efficient operation near aisle exits.

03

Dual-Zone Stationary Monitoring

Collision risks don’t disappear when the truck stops. While stationary, the system monitors both primary and secondary travel directions. This prevents “unnoticed approach” accidents where a pedestrian might walk behind a stationary Turret Truck.

04

Mandatory Safety Interlock (The “Release” Protocol)

If the system initiates an emergency stop due to a hazard, the vehicle remains electronically locked. The operator must perform a Deliberate Acknowledgment via the release button once the hazard is visually cleared, preventing accidental restarts in high-risk zones.

Technical Specs & Operational Efficiency
Comfort Deactivation Modules
Our logic filters out “fixed structures” like walls, rack uprights, or cross-traffic at the end of the aisle. This ensures the system only reacts to moving hazards (pedestrians) and genuine obstacles.
Seamless Fleet Integration
The system is designed for Universal Retrofit. Whether you operate a Crown, Raymond, or Jungheinrich fleet, our evaluation electronics integrate with existing motor controllers via a non-invasive interface.
Automatic Low-Speed Transition
If a scanner is temporarily obstructed by dust or steam, the system defaults to a “Turtle Mode” (Low Speed) instead of a hard stop, maintaining warehouse throughput while ensuring safety.

Strategic Impact: Compliance and ROI

Regulatory Peace of Mind

Our system meets the highest international safety standards for Type-Examination Testing, ensuring your facility exceeds OSHA and ANSI requirements for VNA operations.

Liability Mitigation

A single pedestrian collision in a narrow aisle can cost a facility upwards of $100,000 in legal and insurance claims. Teknect provides a physical, data-backed layer of protection that often leads to lower insurance premiums.

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    VNA System Technical FAQ

    Q: Why is standard forklift safety insufficient for VNA (Turret) trucks? In Very Narrow Aisles, the margin for error is zero. Standard lights and beepers fail because line-of-sight is blocked by high-density racking. The Teknect VNA system uses Class 1 Laser Scanners to create a dynamic safety envelope, providing Active Collision Avoidance that functions even when the operator’s view is entirely obstructed.

    Q: Does the system cause dangerous sudden stops in tight aisles? No. Our Adaptive Monitoring Logic adjusts warning and stop zones based on the vehicle’s current velocity. Instead of a “hard” emergency brake that could cause load instability, the system interfaces with the vehicle’s Drive Control Unit (DCU) to initiate a Controlled Deceleration, bringing the turret truck to a safe, autonomous halt.

    Q: Can this be retrofitted onto different brands of turret trucks? Absolutely. The system is designed for Universal Retrofit and is brand-agnostic. Whether you operate Crown, Raymond, Jungheinrich, or Mitsubishi VNA fleets, our evaluation electronics integrate directly into existing motor controllers, allowing you to standardize safety across your entire narrow-aisle operation.

    // our clients

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    Emily Johnson
    Emily Johnson
    Purchasing Manager
    We have established a profound and revolutionary friendship with the engineering team of Teknect; in addition, we have witnessed and recognized their professional services. Teknect is a small and sophisticated technology R&D company, and all their highly professional and systematic products are related to forklifts. Meanwhile, they attach equal importance to both the user’s experience and their needs. For AB inbev, Teknect is the very supplier that we are willing to cooperate with and seek win-win results.
    Linda Brown
    Linda Brown
    CEO
    As a developer of intelligent forklift management systems, much of Teknect’s product design and R&D is achieved by collaborating with users. Its business philosophy is to consider the customer’s needs as the top priority, and to design the product in a way most customers would expect. No matter how challenging and difficult the design is, it should be continually developed and stuck to until it begins to create value for its users.
    Ran Zhu
    Ran Zhu
    Client of ComaBudweiser Asia Pacific Warehouse Engineering Managerpany
    In the finished product warehouse, our forklifts are mainly 4-ton electric forklifts with double stations, which can maximize the efficiency of the bicycle operation. In many warehouses, the operation efficiency of the finished product forklift workers can reach 60 torches per hour. The use of trams is to maximize the cleanliness of the finished wine storage environment and ensure a good experience for consumers. In order to reduce the number of batteries used as much as possible and reduce the number of battery change operations, we have begun to trial lithium battery forklifts in a number of factories.
    Felix Da
    Felix Da
    Budweiser Logistics Director, Asia Pacific
    In the Budweiser beer warehouse, you can see a large number of various forklift models, some forklifts have even been used for more than ten years, some have just bought, some lithium tram, some diesel vehicles, showing a complex “diversity”. Due to the huge number of forklifts used in warehousing and distribution, it is inevitable to challenge the orderly operation of forklifts. Before the installation of forklift management system, forklift management is difficult to carry out centralized optimization.