Varrio

IoT

Pilot

Cold-room monitoring

Cold-room temperature and door on your phone, with an alert when something is wrong.

The problem

A cold room with meat hanging to age does not tolerate many hours above temperature. A door left ajar, a compressor that stops or a defrost that runs long, and a whole batch can be ruined before anyone sees it.

A plain thermostat alarm fires on every door opening and every defrost, so it gets switched off. And there is no record of how many degree-days a batch actually got.

What the system does

  • Three temperature probes and a door contact over LoRaWAN or NB-IoT, battery powered, no wiring in the room.
  • Alerts only once the room has been too warm for a while, not on every door opening. Push to the phone.
  • Dry-aging as degree-days, computed from what the room actually measured, per batch hanging.

How it fits together

  1. 01

    Three probes: the room, outside air and evaporator return, plus a door contact. That is how defrost is told apart from a real problem.

  2. 02

    LoRaWAN to a gateway, or NB-IoT over the mobile network. Battery powered, no wiring in the room.

  3. 03

    Dashboard with the room in 3D, 24 hours of history and degree-days per batch. Push to the phone.

Screenshots

Simulated readings.

Main view: room verdict, temperature, supply, outside and door, and the batches hanging
Main view: room verdict, temperature, supply, outside and door, and the batches hanging
Same view with the door open and the room too warm
Same view with the door open and the room too warm
The room in 3D with probe placement and readings
The room in 3D with probe placement and readings
Phone view of the main screen
Phone view of the main screen

Contact

Get in touch

Send a few lines about what you are working on.

einar [at] varrio [dot] no