• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 50 subscribers
  • Views 789 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Implementing huge MESH network with ANT

Eli Hait
Prodigy 50 points

Hello,

I'm interested in implementing large RF network, built of up to 1024 sensors, each of them have to send 10 octets of new information every 10 minutes. This information should reach the data concentration station in reasonable time (up to 5 minutes).

The problem is that these sensors are moving in a wide area, and i assume that every 10-20 seconds, 5% of currently established pairs may break and appear differently, therefore this MESH structure is moderately dinamic in nature.

Because of the size of area in which these sensors may move, practical ISM RF implementation leads to 8 hops between the MESH edges and even more.

Can anyone advise if this is feasible with ANT? What average network latency should be expected in such case? Power consumption issues?

Thanx in advance,

Eli.

  • 0
    Intellectual 870 points

    Hi Eli,

    The simple answer to your question is that it's hard to tell exactly. The most important question that needs to be answered is how many nodes do you expect to be in a given area? ANT module range is specked at (I believe) 20 meters. Channel coexistence has a practical limit of about 100 nodes at 4Hz in a space where they can all be seen by each other. This is going to determine what channel rate you can run at and what topology you might be restricted to. This, in turn, affects the effective data rate to the collector. There might be ways to limit the impact of having a lot of devices in one area, such as using seperate RF channels for different levels, but that will add complexity to your mesh software.

    Because of these things, determining how many nodes you expect to be in a given area will be the first point for determining feasibility.

    Best Regards,

    Kassandra