EMD — Electronic Metering Device with telemetry

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General Description

V.A.D. s.r.o. presents the EMD (Electronic Metering Device) — a digital metering head with integrated telemetry module for diaphragm gas meters in residential and commercial distribution networks. The EMD transmits meter readings to the data server, accepts remote shut-off-valve commands, and monitors flow rate anomalies and tamper events.

The EMD is part of the VAD IIoT Ecosystem, combining field-grade hardware with cloud-side AI microservices for European gas distribution operators.

Regulatory Compliance & Certifications

This product is designed and manufactured in accordance with the following European standards and directives:

All hardware carries CE marking and is eligible for MID certification upon request. Software architecture adheres to ISO 27001 information security management principles.

Main Technical Characteristics

• Alphanumeric LCD display with intuitive menu navigation
• High-quality PCB antenna optimized for GSM/NB-IoT/LTE-M networks
• UV-resistant housing for long-term outdoor installation
• Operating temperature range: −40 °C to +60 °C
• Proprietary low-load data transfer protocol minimizing GSM network traffic
• Dual independent power supplies: separate circuits for metrological and telemetric modules
• Telemetry battery: LiPo 2,000 mAh (4.2 V – 3.4 V), battery life up to 5–10 years depending on configuration
• Configurable absolute pressure reference value for volume correction
• Session diversity module: time-separated transmission sessions improve reliability in areas with challenging radio coverage
• Integrated shut-off valve control with remote and automatic safety triggers

Compatible Meter Types

The telemetry module is designed for integration with diaphragm natural gas meters from European manufacturers, including:

• PIETRO FIORENTINI series
• SAMGAS Group series
• Other meters with pulse/output interface compatible with EN 1359

Displayed Parameters

The device LCD provides real-time access to:

• Measured gas volume (m³), temperature-compensated to +20 °C reference
• Instantaneous gas flow rate (m³/h), standardized to +20 °C
• Ambient and gas temperature (°C)
• Supply voltage status for metrological and telemetry batteries
• Configured absolute gas pressure reference (kPa)
• Current date, time, and scheduled communication session
• Device serial number and firmware version
• Event log: alarms, interventions, tamper detection, communication status
• Data transfer progress to cloud/server platform

Safety & Control Functions

Shut-off Valve Management

• Remote actuation via secure server command by an authorized system operator
• Automatic closure triggered by:
  • Flow rate exceeding 1.25 × Qmax
  • Unauthorized housing opening (tamper detection)
• Leak monitoring during valve-open state with anomaly detection algorithms

Data Archiving & Transmission

• Cumulative gas volume, reduced to standard conditions (20 °C, 101.325 kPa)
• Hourly averaged consumption and temperature values
• Event archives: alarms, emergency situations, maintenance logs, communication history
• Encrypted transmission to the VAD IIoT Ecosystem or third-party billing systems via REST API / MQTT

Software Ecosystem & Integration

The EMD reports into the IIoT Platform on the VAD IIoT Ecosystem, which provides:

✅ Unified data collection — server architecture scaled for thousands of endpoints ✅ Billing system integration — direct export to SAP, Oracle and customer ERP via REST API ✅ User account portal — web interface for consumers to view consumption, alerts, and settings ✅ Mobile application (iOS/Android) — monitoring, push notifications, remote valve control ✅ AI microservices — leak detection, consumption forecasting, anomaly identification

The platform supports multi-tenant deployment, role-based access control, and full audit logging to meet utility-grade security requirements.

Environmental & Operational Benefits

• 🌱 CO₂ reduction: optimized consumption monitoring helps households reduce emissions by up to 1.2 tons/year
• 💰 Cost savings: early leak detection and usage insights can save users €160–500 annually
• 🔋 Long service life: up to 10 years battery autonomy reduces maintenance visits
• 📡 Network efficiency: proprietary protocol reduces GSM data load by up to 70% vs. standard MQTT
• 🔒 Cybersecurity: RED 3.3 compliance, encrypted communications, secure boot, and OTA update signing

Device Summary

The VAD EMD with telemetry module is a retrofit smart-metering product for European gas distribution networks. It combines EN 1359-compliant metrology, RED-certified wireless communication, and the VAD IIoT Ecosystem, allowing operators to deploy scalable smart metering networks. Engineered in Slovakia for the European market.