Why Traditional AGVs Drift While Modern AMR Robots Get More Accurate Over Time



Why Do AGVs Drift While AMRs Stay Precise? Here’s the Real Reason.

Many factory owners worry:
“Will the robot get lost? Will it drift off-path after running for a while?”
These concerns mostly come from past experiences with outdated AGVs getting stuck, colliding, or freezing mid-route.

But the truth is simple:
Getting lost is an AGV problem, not an AMR problem.

This article explains why.


1. Why Traditional AGVs Drift or Get Stuck

① AGVs Depend Too Much on Ground Markers

AGVs rely on:

  • Magnetic strips

  • QR codes

  • Reflective markers

If any of these are:

  • Worn out

  • Covered

  • Damaged

  • Slightly misaligned

…the AGV loses its path, stops, or drifts immediately.

② Any Small Environmental Change Causes Confusion

AGVs struggle when:

  • A cardboard box appears on the ground

  • A pallet shifts by a few centimeters

  • A forklift blocks part of the route

AGVs cannot dynamically reroute and simply stop, waiting for human rescue.

③ One Blockage → Entire Line Stops

Because AGVs follow fixed “railway-style” paths, if one unit is blocked:

  • All AGVs behind it are stuck

  • The entire line collapses

  • Efficiency drops drastically

This is why many factories feel AGVs are “unreliable”—the technology is rigid and outdated.

2. Why Modern AMR Robots Become More Accurate with Use

① SLAM Navigation — No Magnetic Strips, No QR Codes

AMRs use real-time SLAM to:

  • Scan the environment

  • Build maps

  • Self-locate

  • Plan optimal routes

If the environment changes, AMR simply remaps and keeps working.

② Laser + 3D Vision = Understanding the Real World

AMRs can detect:

  • People

  • Forklifts

  • Dropped materials

  • Pallet feet

  • Low-height obstacles

  • Temporary objects

The richer the perception, the more precise the navigation.

③ They Don’t Stop — They Reroute Automatically

If an obstacle appears, AMR reacts like a skilled human driver:

  • Reroutes

  • Slows down

  • Avoids congestion

No human intervention needed, no “dead robot zones”.

④ The More They Run, the More Accurate They Get

AMR maps continually refine over time:

  • Position accuracy improves

  • Navigation becomes smoother

  • Path optimization becomes smarter

Unlike AGVs, AMRs never “drift with age”.
They get better with age.

3. Why So Many Factories Choose Reeman AMR Robots First

① Proven in Highly Complex, Real-World Environments

Reeman AMRs run in:

  • Electronics factories

  • Home appliance plants

  • New energy workshops

  • Multi-floor logistics centers

Environments with clutter, intersections, mixed traffic, and constant changes.

② Dual Sensing (Laser + 3D Camera) for High-Precision Navigation

They detect:

  • Low-height obstacles

  • Overhanging objects

  • Transparent crates

  • Narrow pallet edges

Where traditional AGVs frequently fail.

③ Advanced Multi-Robot Coordination

The dispatch system handles:

  • Auto traffic avoidance

  • Load balancing

  • Route optimization

  • Congestion prevention

The more complex the site, the stronger the AMR advantage.

④ Autonomous Elevator Integration

AGVs cannot take elevators.
Reeman AMRs can:

  • Call the elevator

  • Enter safely

  • Navigate to the correct floor

  • Continue tasks seamlessly

Essential for multi-floor logistics.

⑤ Validated With Millions of Operating Kilometers

With thousands of deployed units, Reeman AMRs have proven:

  • No drifting

  • No random stops

  • No getting lost

Stable operation is the default.


AGVs Drift, AMRs Improve — The Future Is Clear

If your factory has:

  • Narrow aisles

  • Dynamic traffic

  • Frequent layout changes

  • Multi-floor operations

Then AGVs will struggle, but AMRs will thrive.

Reeman AMRs don’t just “stay accurate”—
they get increasingly precise the more they run

Article Source: Reeman

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