Choosing the right navigation technology is one of the most critical decisions when deploying an AGV fleet. In this guide, we compare the two most common approaches: LiDAR natural feature navigation and QR code / marker-based navigation.

QR Code Navigation

QR code (or magnetic marker) navigation uses visual or optical sensors to read markers placed on the floor along predefined paths. The robot follows a fixed route, repositioning itself whenever it reads a code.

Advantages

• High positioning accuracy (±10mm) in controlled environments
• Mature technology with proven reliability
• Lower robot hardware cost for basic implementations

Limitations

• Requires floor marker installation and periodic replacement
• Routes are fixed; changes require re-marking the floor
• Markers can be damaged by forklift traffic, dirt, or spills
• Poor performance in dynamic or cluttered environments

LiDAR Natural Feature Navigation

LiDAR SLAM (Simultaneous Localization and Mapping) navigation builds a map of the existing environment using laser scanners. The robot localizes itself by matching its real-time sensor readings against the saved map of walls, racks, pillars, and fixed objects.

Advantages

• No floor markers or infrastructure changes required
• Routes can be updated in software — no physical reconfiguration
• Adapts to environmental changes with dynamic mapping updates
• Better obstacle avoidance and dynamic path planning

Limitations

• Slightly higher initial hardware cost
• Requires sufficiently distinctive environmental features for reliable localization
• Performance degrades in highly open or featureless spaces

Which Should You Choose?

Most modern warehouse and manufacturing deployments favor LiDAR natural feature navigation for its flexibility and lower long-term maintenance. At Zhenyu Robotics, all our standard AGV platforms ship with LiDAR SLAM navigation as standard. Talk to our engineers to find the right navigation solution for your facility.

Technical Specifications