Difference between revisions of "Wireless sensor network - SoilNet"

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Line 10: Line 10:
  
 
===Radio protocol used:===
 
===Radio protocol used:===
 +
 +
Jenie from Jennic
  
 
===Range/Power (line of sight/dBm):===
 
===Range/Power (line of sight/dBm):===
Line 28: Line 30:
 
yes
 
yes
 
===Mesh limitations:===
 
===Mesh limitations:===
number of sensors:
 
  
number of nodes per router:
+
number of sensors:300
 +
 
 +
number of nodes per router:10
  
  
Line 46: Line 49:
  
 
===Data reading frequency:===
 
===Data reading frequency:===
 
+
> 1 sec
===Storage of data/backup
+
===Storage of data/backup:===
 
+
400 measurements
 
===Power consumption:===
 
===Power consumption:===
  
Line 59: Line 62:
 
===Reliability:===
 
===Reliability:===
 
Years in service:
 
Years in service:
 
+
1.5 years
 
Failure rate instrument (years):
 
Failure rate instrument (years):
  
Line 65: Line 68:
  
 
===Installation procedure:===
 
===Installation procedure:===
Display
 
 
Real time data
 
  
Information on link quality
+
Separate power meter, Laptop with GPRS, Display showing sensor measurements
  
 
===Installation underground possible:===
 
===Installation underground possible:===
 +
yes
  
 
===Battery life:===
 
===Battery life:===
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===Maintenance required /Ease of maintenance:===
 
===Maintenance required /Ease of maintenance:===
 +
 +
battery change each 3 month for the router
  
 
=== Support:===
 
=== Support:===
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===Software:===
 
===Software:===
  
Web friendly interface:
+
Web friendly interface:  
 +
yes
 +
 
 +
Data base:yes
  
Data base:
 
  
Scripting language:
+
Scripting language:Postgrsql, Macrolanguage, C-Programming,
  
 
Ease of update:
 
Ease of update:
  
 
Open source:
 
Open source:
 +
yes, also free of cost
  
 
===Cost:===
 
===Cost:===

Revision as of 23:21, 8 July 2009

Wireless sensor network


Method:

Summary:

Radio frequency used:

2.4 GHz

Radio protocol used:

Jenie from Jennic

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

Hop modes:

multi-hop, tree-network

GPRS:

yes

Mesh limitations:

number of sensors:300

number of nodes per router:10


Additional information:

Sensor compatibility:

Echo EC-5

Echo 5TE

Temperature

4 digital/ 4 analogue

Data reading frequency:

> 1 sec

Storage of data/backup:

400 measurements

Power consumption:

sleep modus: 5 µA

during sending: 125 mA

mW/packets ?

Reliability:

Years in service: 1.5 years Failure rate instrument (years):

Packet failure (%):

Installation procedure:

Separate power meter, Laptop with GPRS, Display showing sensor measurements

Installation underground possible:

yes

Battery life:

End device calculated: 3 years

Router without solar panel: 3 months

Maintenance required /Ease of maintenance:

battery change each 3 month for the router

Support:

Software:

Web friendly interface: yes

Data base:yes


Scripting language:Postgrsql, Macrolanguage, C-Programming,

Ease of update:

Open source: yes, also free of cost

Cost:

What to watch out for:

Problems/Questions:

Links

Projects that used the above equipment:


Other related web sites:

Technical information

Distributors


References