Safety is one of the most important considerations when deploying autonomous forklifts in warehouses and industrial facilities. When AGVs operate together with human workers, companies need confidence that the system can detect obstacles, react quickly and maintain safe operation under different working conditions.

Modern Chinese AGV manufacturers typically combine multiple sensing technologies instead of relying on a single sensor. This layered approach helps improve detection reliability and provides additional protection in complex warehouse environments.

Why Do AGVs Need Multiple Safety Sensors?

No single sensor technology can perfectly detect every possible obstacle in an industrial environment.

Different sensors have different advantages:

• Laser scanners provide accurate distance measurement and navigation safety zones.

• 3D cameras provide visual information about object shape and height.

• Safety sensors provide additional protection around the vehicle.

• Software algorithms combine sensor data to make safer decisions.

By combining multiple technologies, AGVs can create multiple layers of safety protection.

How Do 3D Cameras Complement Laser Safety Scanners?

Laser scanners are widely used in autonomous forklifts for obstacle detection and safety zone monitoring. However, 3D cameras can provide additional information that traditional distance sensors may not capture.

A 3D vision system can help identify:

• Object height and shape

• Different obstacle categories

• Human movement patterns

• Unexpected objects in operating areas

The combination of laser scanning and 3D vision allows AGVs to better understand their surroundings and improve safety performance in dynamic environments.

Can Chinese AGVs Detect Low-Level Obstacles Such as Worker Feet?

Industrial warehouses contain many small obstacles that may not be detected effectively by a single sensing method.

Examples include:

• Worker feet entering the driving path

• Small tools left on the floor

• Pallet fragments

• Loose packaging materials

• Low-position obstacles

Advanced AGV safety systems combine different sensor heights and detection technologies to improve awareness of objects around the vehicle.

How Do AGVs Detect Overhead Obstacles?

Warehouses often contain obstacles above ground level, including hanging cables, pipes, signs and temporary equipment.

Companies should evaluate whether the AGV safety system considers:

• Vehicle height clearance

• Overhead structures

• Warehouse equipment layout

• Dynamic changes in the operating environment

For applications involving high racks or complex factory environments, 3D perception technology can provide additional environmental awareness beyond traditional 2D scanning.

What Happens If a Safety Sensor Is Blocked or Malfunctions?

Safety systems should not only work during normal operation but also handle abnormal situations.

A reliable AGV safety design should consider:

• Sensor fault detection

• Warning notifications

• Automatic speed reduction

• Emergency stopping procedures

• Operator alerts

These safety mechanisms help reduce risks when unexpected conditions occur.

Do Chinese AGV Safety Sensors Meet International Standards?

When purchasing autonomous forklifts internationally, companies should verify compliance with applicable safety standards rather than relying only on product descriptions.

Common areas to review include:

• CE certification requirements

• ISO 3691-4 safety requirements for driverless industrial trucks

• TUV testing or certification where applicable

• Safety component documentation

• Risk assessment reports

Buyers should request technical documentation and certification evidence during supplier evaluation.

How Should Companies Evaluate AGV Safety Before Purchasing?

A complete safety evaluation should consider the entire system, including hardware, software and operating procedures.

• Sensor configuration

• Obstacle detection capability

• Safety zone adjustment

• Emergency response behavior

• Human-machine interaction

• Certification documentation

Questions to Ask Chinese AGV Suppliers About Safety Sensors

• What safety sensors are installed on the AGV?

• How do 3D cameras and laser scanners work together?

• Can the AGV detect low-height obstacles?

• How are overhead obstacles handled?

• What happens if a sensor becomes blocked?

• Which safety certifications are available?

• Can you provide safety test reports?

• Does the system comply with ISO 3691-4 requirements?

AGV Safety Sensor Evaluation Checklist

Final Thoughts

Safety sensors are a critical part of autonomous forklift deployment, especially when AGVs share working areas with employees. A reliable system should combine multiple sensing technologies, intelligent software and verified safety standards to reduce operational risks.

Before importing AGVs from China, companies should evaluate not only the sensor hardware but also the complete safety architecture, certification documentation and real-world application experience.