An efficient digital solution for the Zadar County Port Authority

The Zadar County Port Authority implemented used oil collection tanks at several isolated locations. However, they faced an operational problem – they did not have the ability to monitor the tank filling level in real time. Due to the lack of information, there were often delays in emptying, which could lead to overflows and environmental risks.

How have we improved the monitoring and management of used oil tanks in remote locations?

Our goal was to provide them with continuous insight into the tank's filling status, enable automated notifications about the need for emptying, and ensure functionality even in locations with poor mobile network coverage.

Decision

In collaboration with the client, we developed and implemented a two-tier system for smart tank management:

  1. Electronic control circuit

We have integrated a custom electronic circuit with sensors inside the tank. The circuit includes:

  • SIM card support,
  • Sending data to the central platform at set intervals,
  • Compatibility with 2G network.
  1. Monitoring and management application

We have developed an intuitive web and mobile application that enables:

  • Real-time display of the status of each tank,
  • Setting warnings when reaching defined charge levels,
  • Centralized management of discharge schedules.

Technical challenge

The biggest challenge was communication in locations with very weak signals. By optimizing data transmission and using compression, we ensured a stable connection even with minimal network capacity (2G). This eliminated the need for additional infrastructure or changes to existing locations.

Results

  • 100% visibility over all tanks in real time,
  • Reducing unnecessary field trips and operating costs,
  • Overflow prevention and reducing environmental risk,
  • Increased efficiency in maintenance and logistics.

 

Technology in the service of sustainable waste management

This project shows how simple but smart technological solutions can be successfully applied even in demanding conditions. The combination of sensor technology, reliable communication and intuitive software resulted in a system that really works – everyday, reliably and without unnecessary complexity.

If your organization also manages infrastructure, waste or resources at multiple locations - and you are facing monitoring, planning or monitoring problems - please feel free to contact us.
Together we can find a solution that meets your real needs.

 

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