Restaurant Cold Storage Monitoring

المشكلة

Kitchen staff write fridge temperatures on a paper sheet twice a day, so failures at night are missed and inspectors see records that are hard to trust.

نظرة عامة على الحل

MILESGO gateways collect data from refrigerators, freezers and cold room controllers, PT100 / PT1000 temperature probes, door contacts, LoRaWAN wireless sensors over Modbus RTU / LoRaWAN, and deliver it to a cloud platform (MQTT), SMS, email and messaging alarms as MQTT. Field equipment keeps its own protocol and control logic; integration is done by configuration and point mapping, not custom code.

Typical scope

refrigerators, freezers and cold room controllers
PT100 / PT1000 temperature probes
door contacts
LoRaWAN wireless sensors

Protocol path

Modbus RTU / LoRaWAN → MQTT

Implementation checklist for the project manager

Agree data retention and the report format needed for audits with the quality team at the start.
Define an alarm matrix (priority, recipient, escalation) and test every alarm end to end at SAT.
Keep sensor calibration certificates on file and plan recalibration intervals.
Agree sensor positions (height, airflow, distance from doors and diffusers) so readings are representative.
Confirm local storage so data survives network outages, and define the retention period.
Roll out in phases: pilot one site or area, confirm data quality, then replicate.

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: refrigerators, freezers and cold room controllers, PT100 / PT1000 temperature probes, door contacts, LoRaWAN wireless sensors, 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: a cloud platform (MQTT), SMS, email and messaging alarms, which receives the data as MQTT. Remote access for maintenance runs over VPN rather than open internet ports.

مكونات النظام

Field devices: refrigerators, freezers and cold room controllers, PT100 / PT1000 temperature probes, door contacts, LoRaWAN wireless sensors
Edge / integration: MILESGO protocol gateways and edge controllers
Upper systems: a cloud platform (MQTT), SMS, email and messaging alarms (MQTT)
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

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

Alarms reach the right person by SMS, email or messaging apps
Timestamped records for compliance and reporting
Data kept locally during network outages
Abnormal conditions seen early, before they become failures

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