Safety Rated Industrial Equipment: Not All Lidars are Created Equal
LiDAR has revolutionized how autonomous mobile robots (AMRs), automated guided vehicles (AGVs), and industrial cobots navigate complex operations. However, in busy facilities where heavy machinery works directly alongside human personnel, standard perception is not enough. When collision risks threaten worker health and safety, not all LiDARs are created equal.
Standard LiDAR vs. Safety-Rated LiDAR
Standard sensors actively scan surroundings to assist with basic navigation, but if an internal component glitches or factory dust obscures the lens, standard LiDAR can fail silently. Safety-rated LiDAR is engineered specifically to eliminate silent failures by guaranteeing a certified, fail-safe state upon fault detection.
- Hardware Redundancy & Self-Diagnostics: Integrated testing routines continuously monitor optical window cleanliness, laser diode power, and internal logic in real time.
- Deterministic Stop Signals: Instead of relying on non-deterministic software algorithms, safety scanners send hardwired emergency stop signals directly to a safety controller within milliseconds.
- Strict Certification & Eye Safety: Devices adhere to rigorous functional standards, including ISO 13849 (Performance Levels PL d/e) and IEC 61496 (Type 3 ESPE design), while maintaining Class 1 Eye Safety (IEC 60825-1) under all operating conditions.
Enforcing Dynamic Safety Zones
Safety-rated units enforce multi-layered, active protection zones that dynamically adapt based on machine speed, steering angle, and operational risk:
- Warning Field: Automatically decelerates equipment or triggers alerts when personnel enter the outer perimeter.
- Protective Field: Immediately initiates a hardware emergency stop the moment a human or obstacle breaks the inner threshold.
Under the Hood: High-Speed Component Integration
Achieving certified millisecond reaction times requires extreme internal circuit design. Specialized gate drivers, high-frequency switches (often utilizing GaN power transistors), and ultra-stable laser diodes must work in perfect synchronization. This hardware architecture delivers precise optical pulses and instant signal processing to guarantee reliable shutdown capabilities without false trips.
The Differentiator for Modern Automation
LiDAR remains the most computationally efficient technology for processing surrounding environments, delivering essential spatial data while requiring significantly less processing horsepower than heavy camera vision setups. As production costs decline and global adoption surges across autonomous platforms, LiDAR has firmly established itself as the leading sensor technology. However, deploying this efficiency on the factory floor hinges entirely on functional safety certification. Integrating safety-rated LiDAR transforms raw operational awareness into fail-safe protection—allowing high-speed industrial machinery and human teams to work side-by-side without sacrificing throughput or life safety.
Leave your information for your safety rated Lidar requests or discuss your use case that requires safety rated lidar with us.
Written by
Founder and CEO, CRATUS Technology, Inc.
Zeki founded CRATUS in 2013 and leads the San Jose team building LiDAR volume measurement systems, IoT sensing platforms, and energy and industrial automation hardware.
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