Bridge Environmental Monitoring

المشكلة

Wind, temperature and humidity on long bridges affect traffic restrictions and maintenance, but readings are collected from standalone loggers weeks later.

نظرة عامة على الحل

MILESGO gateways collect data from wind, temperature and humidity sensors on structures, weather stations, 4–20 mA / 0–10 V transmitters, solar power and battery cabinets at remote sites over Modbus RTU / LoRaWAN, and deliver it to SCADA, a cloud platform (MQTT), SMS, email and messaging alarms as MQTT / OPC UA. Field equipment keeps its own protocol and control logic; integration is done by configuration and point mapping, not custom code.

Typical scope

wind, temperature and humidity sensors on structures
weather stations
4–20 mA / 0–10 V transmitters
solar power and battery cabinets at remote sites

Protocol path

Modbus RTU / LoRaWAN → MQTT / OPC UA

Implementation checklist for the project manager

Outdoor sites need a weatherproof, ventilated enclosure with surge protection; the gateways are panel-mount devices (working range -20 °C to +70 °C).
Check 4G signal and the SIM data plan at every site before committing to cellular backhaul.
Keep sensor calibration certificates on file and plan recalibration intervals.
RS-485: shielded twisted pair, daisy-chain topology, termination at both ends, up to 32 nodes per segment without a repeater.
Confirm local storage so data survives network outages, and define the retention period.
Define an alarm matrix (priority, recipient, escalation) and test every alarm end to end at SAT.

Project deliverables

Signed point table and protocol mapping
Gateway configuration files and backups
IP address plan and network drawing
FAT and SAT test records
As-built documentation and operator training

بنية النظام

Field layer: wind, temperature and humidity sensors on structures, weather stations, 4–20 mA / 0–10 V transmitters, solar power and battery cabinets at remote sites, connected over Modbus RTU / LoRaWAN. Edge and integration layer: MILESGO protocol gateways and edge controllers, mounted on DIN rail in existing panels, polling each device, time-stamping values and buffering them locally. Upper layer: SCADA, a cloud platform (MQTT), SMS, email and messaging alarms, which receives the data as MQTT / OPC UA. Remote access for maintenance runs over VPN rather than open internet ports.

مكونات النظام

Field devices: wind, temperature and humidity sensors on structures, weather stations, 4–20 mA / 0–10 V transmitters, solar power and battery cabinets at remote sites
Edge / integration: MILESGO protocol gateways and edge controllers
Upper systems: SCADA, a cloud platform (MQTT), SMS, email and messaging alarms (MQTT / OPC UA)
Tools and commissioning: Web-based configuration, point table import/export (Excel), off-site simulation and on-site diagnostic tools

قدرات البرمجيات والذكاء الاصطناعي

Anomaly detection on trend dataضمن الخطة
Load and consumption forecastingضمن الخطة

خطوات التسليم

1
Site survey and point list
Inventory devices, protocols, register maps, panel space, power and network paths.
2
Design and point table sign-off
Map every point to the target protocol and system; agree it with the client and the upper-system contractor.
3
Configuration and FAT
Build the gateway configuration off site, simulate it and test against the signed point table.
4
Installation and wiring
Mount gateways on DIN rail, wire RS-485 / I/O / Ethernet, apply the IP plan.
5
SAT and alarm tests
Verify values against local readings, test every alarm and command end to end.
6
Handover and support
Hand over configuration backups, point table and as-built documents; train operators.

القيمة للعميل

Unattended sites supervised without permanent staff
Abnormal conditions seen early, before they become failures
Reliable trend data for optimisation and fault diagnosis
Data kept locally during network outages

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