Hi,
We are designing a remote control system for outdoor appliances. The rf remote control system should be simple
but secure, and also expandable in the future. At first there will be simple on/off commands
and some configutration messages from a remote to the appliance, but in later phase we need to
be able to send data from the appliances to some kind of a gateway device. Anyway bandwidth requirement
is pretty low, but the latency of the system is more important, as we need to be able to react to
commands within a second to keep the system "responsive". There will be 0-10 commands / messages transmitted daily.
Initial plan is to use SubGHz band in order to gain some reliability and robustness. The network size
could be 2-10 nodes. We aim to be able to run for 6-7 months, preferably with a few AA batteries.
Given all our nodes (except for the gateway, which is optional component so it may not be present at all)
are battery operated, I'm a bit sceptic if the existing "standard" mesh solutions would fit this case. Many of them seem to rely
on havig at least some root node connected to constant power, so they can use 100% rx duty cycle. For us, keeping the
RX on 100% of time would cost way too much in power consumption, so this leads to a few questions:
- Do you know if any of the mesh technologies utilise low enough rx duty cycle so it would be possible to run on batteries, mainataining the ~1sec latency?
- If not, which other TI wireless products and RF stacks would you recommend for this kind of a use case. Are
there any solutions where low rx duty cycle is utilized and thus they could meet the low power requirements?
Thanks,
Mikko
