FPI EPMS-2000 Environmental Process Monitoring System Control Cabinet

Overview

The FPI EPMS-2000 Environmental Process Monitoring System Control Cabinet is an industrial-grade, rack-mounted control and integration platform engineered for continuous, real-time supervision of flue gas desulfurization (FGD) systems and other pollution abatement processes at stationary emission sources. It functions as the central data acquisition, processing, and decision-support unit within a broader Environmental Process Monitoring System (EPMS), operating on a deterministic embedded architecture with deterministic I/O response timing. The cabinet integrates heterogeneous field data—including analog 4–20 mA signals, digital pulse inputs, Modbus RTU/TCP, OPC UA, and DCS/PLC interface protocols—into a unified time-synchronized data stream. Its core operational logic is built upon pre-validated FGD process models aligned with China’s “Technical Specification for Online Monitoring of Flue Gas Desulfurization Facilities” (HJ 75–2017) and “Standard for Data Validation of Pollution Source Automatic Monitoring Systems” (HJ 354–2019). Unlike generic SCADA hardware, the EPMS-2000 embeds domain-specific regulatory rulesets—including power consumption–SO₂ removal efficiency correlation thresholds, scrubber slurry pH–oxidation air flow interlocks, and bypass damper position–CEMS synchronization validation—to enable automated facility operational status classification (e.g., “Normal Operation”, “Maintenance”, “Abnormal Emission Event”) per national environmental monitoring guidelines.

Key Features

• Integrated hardware-software architecture with dual-redundant ARM Cortex-A53 processors and industrial-grade flash storage for deterministic real-time data handling
• Preloaded FGD operational standard library compliant with HJ 75–2017, supporting automatic derivation of key performance indicators (KPIs) such as desulfurization efficiency, limestone utilization rate, and gypsum dewatering performance
• Multi-protocol fieldbus support: native drivers for Modbus RTU/TCP, Profibus DP, CANopen, and OPC UA (compliant with IEC 62541)
• Real-time process simulation engine enabling dynamic visualization of scrubber tower hydrodynamics, slurry density evolution, and SO₂ mass balance under varying load conditions
• Regulatory-grade event logging with millisecond-level timestamping, tamper-evident audit trail, and GLP-compliant electronic signature support for critical parameter modifications
• Onboard data reconciliation module performing automatic gap-filling using Kalman filtering and historical trend interpolation—validated against HJ 356–2019 requirements for missing data treatment
• Configurable alarm hierarchy with three-tier severity levels (Warning, Alert, Critical), each mapped to distinct notification channels (SMS gateway, SNMP trap, MQTT topic, or local HMI push)

Sample Compatibility & Compliance

The EPMS-2000 is designed for deployment in thermal power plants, steel mills, cement kilns, and chemical manufacturing facilities where wet-limestone FGD, seawater FGD, or circulating fluidized bed (CFB) desulfurization systems are installed. It accepts input from certified CEMS analyzers (SO₂, NOₓ, O₂, particulate matter), flow meters (magnetic, ultrasonic), pH/ORP sensors, density meters, and actuator position feedback devices meeting IP65/NEMA 4X enclosure ratings. All firmware and configuration files comply with China’s “Information Security Technical Requirements for Environmental Monitoring Systems” (GB/T 35273–2020) and support TLS 1.2 encrypted upstream communication to provincial environmental monitoring centers. The system meets electromagnetic compatibility requirements per GB/T 17626.2–2018 (ESD), GB/T 17626.3–2016 (radiated RF immunity), and operates reliably across –10 °C to +55 °C ambient temperatures.

Software & Data Management

The embedded Linux-based runtime environment hosts FPI’s proprietary EPMS-OS v4.2 firmware, featuring a web-accessible HMI (HTML5/CSS3/JavaScript) with role-based access control (RBAC) and session timeout enforcement. Data persistence utilizes SQLite3 with WAL journaling and daily encrypted backups stored on removable SD card or network-attached storage (NAS). All exported reports—including hourly KPI summaries, monthly compliance dashboards, and incident root-cause analysis logs—adhere to the XML schema defined in HJ 353–2019. Audit logs record user login/logout events, configuration changes, alarm acknowledgments, and data export actions with SHA-256 hash integrity verification. For enterprise integration, the cabinet supports secure HTTPS API endpoints compliant with RESTful conventions and provides optional FDA 21 CFR Part 11–ready extensions (electronic signatures, audit trail export, and operation lockout during signature workflows).

Applications

• Automated determination of FGD facility operational integrity for environmental supervision departments conducting remote inspections
• Supporting emission trading programs by generating verified, time-stamped records of actual desulfurization performance versus permit limits
• Enabling dynamic calculation of pollutant discharge fees based on real-time stack concentration × volumetric flow × operational duration
• Feeding validated process data into enterprise-level environmental information systems (EIS) for sustainability reporting (GRI, CDP)
• Providing traceable evidence for environmental liability assessments during regulatory investigations or third-party audits
• Facilitating predictive maintenance planning via trend analysis of pump vibration harmonics, slurry density drift, and reagent consumption anomalies

FAQ

Does the EPMS-2000 support integration with existing DCS or SIS platforms?

Yes—it provides certified drivers for Siemens PCS7, Honeywell Experion PKS, Yokogawa CENTUM VP, and Emerson DeltaV via OPC UA and Modbus TCP, with documented certificate-of-conformance test reports available upon request.
Can the system operate without cloud connectivity?

Yes—the EPMS-2000 functions autonomously in offline mode with full local data acquisition, modeling, alarm generation, and report generation; cloud or center-system upload is optional and configurable.
Is firmware update capability available remotely?

Yes—updates are delivered via signed package files over HTTPS; each update undergoes cryptographic signature verification prior to installation, and rollback to previous version is supported.
What cybersecurity certifications does the device hold?

It complies with GB/T 22239–2019 (China’s Multi-Level Protection Scheme Level 3) and has passed penetration testing per ISO/IEC 15408 Common Criteria EAL3+ for embedded industrial controllers.
How is data authenticity ensured for regulatory submission?

All uploaded datasets include embedded digital signatures using SM2 elliptic-curve cryptography per GM/T 0003–2012, and timestamps are synchronized to China Standard Time (CST) via NTP servers authenticated with symmetric key encryption.