Wireless sensor network - SoilNet
From ExperimentalHydrologyWiki
Wireless sensor network
Contents |
[edit] Method:
[edit] Summary:
[edit] Radio frequency used:
2.4 GHz
[edit] Radio protocol used:
Jenie from Jennic
[edit] Range/Power (line of sight/dBm):
Free sight range: 4km
Router to Router in Field in operation: 600 m
Belowground End device to Router in operation: up to 80 m
Transmission power 19 dBm
[edit] Hop modes:
multi-hop, tree-network
[edit] GPRS:
yes
[edit] Mesh limitations:
number of sensors:300
number of nodes per router:10
[edit] Additional information:
[edit] Sensor compatibility:
Echo 5TE
Temperature
4 digital/ 4 analogue
[edit] Data reading frequency:
> 1 sec
[edit] Storage of data/backup:
400 measurements
[edit] Power consumption:
sleep modus: 5 µA
during sending: 125 mA
mW/packets ?
[edit] Reliability:
Years in service: 1.5 years
Failure rate instrument (years):
Packet failure (%):
[edit] Installation procedure:
Separate power meter, Laptop with GPRS, Display showing sensor measurements
[edit] Installation underground possible:
yes
[edit] Battery life:
End device calculated: 3 years
Router without solar panel: 3 months
[edit] Maintenance required /Ease of maintenance:
battery change each 3 month for the router
[edit] Support:
[edit] Software:
Web friendly interface: yes
Data base:yes
Scripting language:Postgrsql, Macrolanguage, C-Programming,
Ease of update:
Open source: yes, also free of cost
[edit] Cost:
End device: ~150€
[edit] What to watch out for:
[edit] Problems/Questions:
[edit] Links
Projects that used the above equipment:
Other related web sites:
Technical information
Distributors
