Frost hollow monitoring with our air temperature and humidity LoRaWAN sensors

Kaltluftseen.ch, an initiative by Stephan Vogt, monitors frost hollows in Switzerland. In this season he started to use Decentlab's air temperature and relative humidity with radiation shield (LoRaWAN) and the Data Access platform to monitor Hintergräppelen, a promising site to reach lowest temperatures in Switzerland.

On Tuesday morning we recorded a new minimum of this season with -21.89 °C. We are looking forward for a really cold winter.

More informations about the site Hintergräppelen (kaltluftseen.ch)

LoRaWAN network by Swisscom LPN

Realtime data

Plot of temperature at Hintergräppelen over the last 30 days with minimum of -21.89 °C

Monitoring station (source Stephan Vogt)

Monitoring station and surrounding (source Stephan Vogt)

One full year of soil moisture monitoring

One full year of soil moisture, electrical conductivity and temperature data sent over public LoRaWAN network from 3 locations in Switzerland.

  • Measurement and transmission interval: 10 minutes
  • Battery usage: 10%
  • LoRaWAN network: The Things Network Switzerland 
  • Applications: Monitor and Control Irrigation Events in Nursery and Greenhouse Applications and Research

Realtime data

Screenshot from 2017-10-19 12-22-16b-edit.png

First snow fall in this season measured at Holzegg

We monitor for WSL, Hydrological Forecasts snow level for monitoring of a catchment with a variant of our Level/Displacement Sensor using an ultrasonic sensor. Beginning of this week we caught first snow fall measurements and now we can observe how it melts down or more layers of snow will add up on the cover over the next weeks and months.

Realtime data of our sensor at the site

Webcam Holzegg from 2017-11-03 (source @WSL_Hydrology)

Webcam Holzegg from 2017-11-06 (source @WSL_Hydrology)

EmpaQuarterly Report: CO2 under surveillance

This new dense, globally unique sensor network records spatial and temporal changes in CO 2 levels in the atmosphere as well as humidity and temperature. All data are accessible from a web platform. © Empa

This new dense, globally unique sensor network records spatial and temporal changes in CO 2 levels in the atmosphere as well as humidity and temperature. All data are accessible
from a web platform.
© Empa

The distribution of the CO2 concentration in the City of Zurich averaged over 2013 and 2014. Thanks to the readings from the sensor network, this kind of model calculation will be more precise in future. © Empa

The distribution of the CO2 concentration in the City of Zurich averaged over 2013 and 2014. Thanks to the readings from the sensor network, this kind of model calculation will be more precise in future.
© Empa

Switzerland is to gain a dense, globally unique CO2 measuring network: 300 sensors permanently collect up-to-date readings, which form the basis for atmospheric dispersion models that are being developed at Empa.

Read full article in EmpaQuarterly

Decentlab devices and use case in the media

Zeitschrift WOHNEN published a report about LoRaWAN. It gives an introduction to LoRaWAN and highlights several use cases including Carbosense. Illustrations for the report show our devices in action. Read full report

©Markus Lamprecht, zVg

©Markus Lamprecht, zVg

Real time level monitoring demo with our new partner OrbiWise

Check out our new demo together with OrbiWise. OrbiWise provides a full network software solution for LoRaWAN-based networks. Our sensors and application server fits perfectly in combination with the network server from our partner. The demo shows a piezoresistive pressure and temperature sensor for level metering applications like water supply, waste water, ground water or surface water.