Smart Public Toilet Monitoring

The problem

Cleaning follows a fixed timetable regardless of use, odour and supply shortages lead to complaints, and water leaks run unnoticed overnight.

Solution overview

MILESGO gateways collect data from occupancy and people-counting sensors, ammonia / H2S odour sensors, water meters, LoRaWAN wireless sensors over LoRaWAN / Modbus RTU, and deliver it to the city IoT platform, 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

occupancy and people-counting sensors
ammonia / H2S odour sensors
water meters
LoRaWAN wireless sensors

Protocol path

LoRaWAN / Modbus RTU → MQTT

Implementation checklist for the project manager

Run a LoRaWAN coverage survey and pick the regional band (EU868 / US915 / AU915 / AS923 / KR920 / CN470) before ordering.
Agree sensor positions (height, airflow, distance from doors and diffusers) so readings are representative.
Define an alarm matrix (priority, recipient, escalation) and test every alarm end to end at SAT.
Fix a site / asset naming convention before the first site so data from all sites can be compared.
Roll out in phases: pilot one site or area, confirm data quality, then replicate.
Check 4G signal and the SIM data plan at every site before committing to cellular backhaul.

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

System architecture

Field layer: occupancy and people-counting sensors, ammonia / H2S odour sensors, water meters, LoRaWAN wireless sensors, connected over LoRaWAN / Modbus RTU. 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: the city IoT platform, 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.

System composition

Field devices: occupancy and people-counting sensors, ammonia / H2S odour sensors, water meters, LoRaWAN wireless sensors
Edge / integration: MILESGO protocol gateways and edge controllers
Upper systems: the city IoT platform, 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

Software and AI capabilities

Load and consumption forecastingRoadmap

Delivery steps

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.

Customer value

Abnormal conditions seen early, before they become failures
Alarms reach the right person by SMS, email or messaging apps
Unattended sites supervised without permanent staff
Data ready for cloud platforms and analytics

Tell us about your project

Send the protocols, point count and target system. A sales and engineering pair reviews every submission.

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