Digital Seismic Switch (DSS)
Improving Critical Facility Safety with Real-Time, Fault-Tolerant Seismic Detection
technology Snapshot
Overview
The Digital Seismic Switch (DSS) is a compact, faulttolerant seismic detection system designed for the protection of critical infrastructure. Unlike traditional threshold switches, DSS continuously monitors ground motion and its own operational integrity. When seismic activity exceeds preconfigured limits, DSS sends out a real-time, microsecond-scale signal to trigger protective measures such as system shutdowns or isolations. Its SIL-2 certification under IEC 61508 and integrated fault diagnostics make DSS a uniquely robust platform for mission-critical safety environments. The system has been validated through operational deployment and is fully ready for commercial scale-up.

Advantages
- High Reliability: SIL-2 certified with internal redundancy
- Fast Response: Microsecond-scale signal triggering
- Compact and Integrated: Combines sensing, logic, and interface in one unit
- Data-Rich Output: Continuous streaming of seismic and operational data
- Standards Compliant: Meets ANSI/ANS-2.2 and is scalable across safety platforms
Technology Description
At its core, DSS uses a safety-rated microprocessor and redundant MEMS g-force sensors to monitor seismic activity. When motion surpasses the set thresholds, it delivers a switched output signal for immediate response.
Key features include:
- Fault Tolerance: Internal health checks with active failure alerts
- High Availability: Continuous uptime during and after seismic events
- Smart Interface: Real-time data and diagnostics via fiber optic link
- Remote Logging: Seamless seismic data capture in compliance with ANSI/ANS-2.2
DSS is a modular, plug-and-play external component, designed to integrate seamlessly into existing safety architectures.
Market Applications
DSS serves critical industries where real-time seismic monitoring is essential for safety and operational continuity.
Potential uses include:
- Nuclear Facilities: Enables automated system response during seismic events
- Oil and Gas Production: Enhances fault detection in pipelines and refineries
- Data Centers & Infrastructure: Safeguards sensitive assets from ground motion disruption
- Medical & Pharmaceutical Equipment: Maintains equipment stability in seismic scenarios
The global seismic protection device market is projected to reach $4.31B by 2032, positioning DSS as a high-value, future-proof safety solution.
Next Steps
LANL is seeking partners in electronics manufacturing with robust experience in productization and quality assurance to scale DSS for deployment across high-risk infrastructure sectors. Opportunities include co-development of next-gen packaging, certification support, and supply chain readiness for mass production.