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SwissEx:SensornetworksFrom SwissExperimentSensornetworks
SwissEx supported sensor network projectsWithin the SwissEx consortium, there are three complimentary types of wireless sensor networks which projects are encouraged to make use of. Based on the demand for these networks, the SwissEx consortium will allocate funding to assist in technology development and deployment. There are three types of sensor networks are as follows:
HYDROMONContact: E. Charbon The HYDROMON network is a sensor network aimed at hydrological measurements. The sensors attached to this network come in two station types or sensor ensembles, Hydrobox and Biosentry. The Hydrobox network nodes measure the following parameters:
The bio-safety sensor ensembles (Biosentry) continuously measure traces of the following bacteria: and the following protozoa: The current state of this project is that a sensor network is deployed and ready to demonstrate to interested parties. The Hydroboxes currently cost 35000CHF and the Biosentries cost 70000CHF. The first part of the project is to construct a functioning network and the second stage is to work with the manufacturers (Aquatech Solutions) to reduce the costs. The ideal aim would be to have a Hydrobox which costs 1000CHF, although it should be noted that current equivalent monitoring systems cost much more than 35000CHF.
Sensor Network Platform KitContact: J. Beutel NCCR MICS has been working on a kitted, standards based TinyOS-2.x sensor network solution. This allows easy and quick application of WSN technology for first-time adopters. Currently the SNPK is supporting PermaSense but further collaborations are possible.
PermasenseContact: L. Thiele, J. Beutel The Permasense networks are based on tinynode CPUs and single cell batteries in a multihop network, centred on a ruggedised linux x-scale basestation (solar powered), to which more power and network hungry devices e.g. webcams, could be attached. The network is aimed at long-term (3 years) unattended surveillance of environmental parameters in high alpine regions and as such are highly ruggedised and reliable (no mechanical failures in 2 years and only a number of network failures) and network software update is available. The current sensors available in Permasense networks are:
These have so far been aimed at permafrost measurements, however the latest generation of node is highly flexible and could be adapted to take many sensors. The nodes have a 12V power supply for hosting sensors. This sensor network is aimed at long-term variations e.g. diurnal variations. Sampling intervals are approx. 10-30 mins. Each node has SD card memory (user configurable) to allow it to either operate independently of the network or store data should it be separated from the network temporarily (this data is then supplied to the database on reconnection). Nodes have a serial connection and can be attached to dataloggers e.g. Campbell, where required. Links:
SensorScopeContact: M. Parlange, M. Vetterli A SensorScope deployment is a self-organising, multi-hop, ad-hoc wireless network of sensors. The concentration of this project so far has been on meteorological sensors, however, this does not have to be the case. The stations are built for short term deployments (of the order of 1-3 months). Various sampling rates are implemented, but these are averaged over 10 minutes. The current generation of stations are built for dense network deployments, however, as detailed below, the next generation may be used in a wider area, sparse deployment. The sensors integrated on the current generation of SensorScope stations are as follows:
The SensorScope team are currently developing the next generation of stations. This means that no deployments are planned before September. If the development of these stations goes to plan, the team will be open to deployments from this autumn. The upgrades to the stations are as follows:
More information can be found on the SensorScope homepage |
