Fault Phenomenon: ZPMC automated quayside crane laser anti-collision system alarms and triggers an emergency stop, but there is no obstacle ahead.

Troubleshooting Process:
– Checked laser head: lens dirty.
– Checked environmental factors: fog or excessive dust.
– Cleaned laser lens, adjusted sensitivity threshold.

Root Cause: Laser sensor lens contamination caused beam attenuation, misinterpreting it as an obstacle.

Required Parts: Optical cleaning kit.