• Created by Unknown User (garaq), last modified on 18.04.2018

Date

Attendees

Goals

  • Understand Arctic ABC project
    • Current work
    • Long-term objectives
  • Think of possible collaboration

Discussion items

TimeItemWhoNotes
    
    

Minutes

  • Arctic ABC first approach: to deploy simple sensor nodes separated about 100 metres from each other (October 2018). 1 year.
  • Biologists want to deploy sensors in the North, mounted on the ice. The sensor nodes will be deployed in a similar way to figure 1 and the diameter of the structure has to be bigger than a polar bear's jaw.

      Figure 1. Context diagram.

  • These sensor nodes are called POPE and there are 5 types: 
  1. Simba:
    1. Ice sensor-
    2. It can be bought and it is cheap.
    3. Sends data through Iridium SBD at 1.6 GHz. Data: ~kB.
  2. Environmental
    1. Collects light sensor data ~kB.
    2. Will use Iridium.
    3. It is custom.
  3. Acoustic
    1. SAMS & Trondheim
    2. 2 types
      1. Will be deployed in October 2018 and has two sensors.
        • AZFP: acoustic signals for fish. 2 units (one will generate about 1 GB data per year, the other one ~~2 GB per year).
        • Use MBR radio (Radionor) at 5 GHz.
        • Data is collected every 3 months with an airplane (few kms range)
      2.  Kongsberg acoustic
        • ~120 GB
  • The sensor nodes works like this:
    • Wakes up every hour
    • Turns on equipment, writes sensor data into the SSD & switches off
    • Sends housekeeping data

  • Quick cost comparison
    • Quick cost estimation based on Roger's calculations (must be checked): (48*109)/106=48 kbits/Kr
    • Iridium: 3.19 $/MB
  • Possibility of testing:
    • On an Arctic buoy:
      • SDR+UHF antenna
      • Mimic Iridium interface to connect to more devices
    • Ny Ålesund (maybe also in Longyearbyen): 
      • 2 expeditions a year.
      • There is a light cabin where equipment can be deployed (perhaps even without any cost?)
    • Balloon tests for SDR (Erlander?)

Requirements for potential communications equipment

  • General requirements:
    • Easy deployment.
    • No need for manipulating the equipment (cannot take off gloves).
    • Energy efficient!! (If lower data, the radio needs a memory buffer to store data so that the rest of the devices can be turned off).
  • Antenna:
    • Weight: no strict requirement.
    • Size: ~1 squared metre?

Blackboard notes

 

Action items

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