Good afternoon, dear forum members!
I have Chirpstack Server v 3.14.0.
Maybe someone can help me with a rather unusual problem.
There are 5 relays with chip LoRaWAN that need to be turned on or off depending on various parameters.
Accordingly, if I want to turn on 5 relays, I have to send 5 commands to turn on.
When sending 5 commands, some commands do not reach the devices, and each time a different number. But if I send teams with a slight delay, then teams reach 99% of the time.
I would like to clarify a few points:
How can this task be solved?
Are there any parameters that can be configured to solve this problem?
In general, is it possible to build such a system using LoRaWAN?
Can this network server queue be generated in Chirpstack? If it can, then how to implement it?
I hope I was able to correctly formulate this problem.
I will be very grateful for any help and support.
Thank you very much in advance.
P.S. The relay operates in Class C mode with external power.
P.P.S. If the problem is solved by sending commands with a delay of a few seconds (5-10), but without loss, then this solution will satisfy me.
How can this task be solved?
Are there any parameters that can be configured to solve this problem?
# Class-C settings.
[network_server.scheduler.class_c]
# Device downlink lock duration
#
# Contains the duration to lock the downlink Class-C transmissions
# after a preceeding downlink tx (per device).
device_downlink_lock_duration="2s"
# Gateway downlink lock duration.
#
# Contains the duration to lock the downlink Class-C transmissions
# after a preceeding downlink tx (per gateway). As half-duplex gateways
# can't receive when transmitting, this value can be used to avoid that
# a single gateway will transmit multiple frames directly after each other
# and because of that, unable to receive any uplinks.
gateway_downlink_lock_duration="0s"
# Multicast gateway delay.
#
# In case of a multi-gateway multicast downlink, this delay will added to
# the transmission time of each downlink to avoid collisions between overlapping
# gateways.
multicast_gateway_delay="2s"
These are the parameters that you tweak for Class-C.
We tried to increase these values, but they did not help us.
Can you tell me what values are recommended?
The last parameter is required only if we use broadcast polling.