Offline mode for IQRF devices
01 December 2020
A Beaming sensor, once bonded, works in Offline mode. Devices in Offline mode are sleeping all the time and wake up periodically or on some event to collect data (measurements or actuations) and send the data asynchronously to all Aggregating repeaters which are in direct RF range. Aggregating repeaters always store the last received data from every repeater into the log memory and automatically clear it after reading out. The data can be read out synchronously by the Coordinator using the Offline FRC.
The Offline FRC is an analogy to the common FRC intended to read out common (non-Beaming) sensors. The data incoming to the Coordinator has the same format as from common sensors.
Local sensors work at the same RF channel as the entire IQMESH network which may cause unwanted interference. in some cases, an LBT (Listen Before Talk) check performed before the asynchronous packet is sent may help.
The Beaming sensors communicate unidirectionally and no confirmation is provided.
Learn more information about Data aggregating from Beaming sensors and Offline FRC in the IQMESH Network Deployment guide.