
Blue Mesh Product Line User Guide - Sensors
Specifications subject to change without notice. Non-contractual document.
www.elainnovation.com Copyright © 2021 ELA Innovation – BLUE MESH SENSORS User Guide 04A EN
7/28
4.2 OPERATING MODE
Sensor Tag in Autorole mode
The Sensor Tag is configured in a mode referred to as “Autorole”. This mode enables all tags in the network to manage
themselves. Each tag can send its sensor data over the network, and each tag can relay information flowing across the
network. Management is dynamic and automatic. The only constraint is for the tag to be at an acceptable connection
distance to one or more neighboring tags.
The gateway receives network data and transmits it to one or more back-end servers.
The example below shows the connection between tags, gateway(s), and back-end(s).
There are two ways to retrieve data:
•Connect to the Wirepas API and retrieve the data stream respecting the format required by Wirepas.
•Develop your own API and handle message collection yourself.
Sensor data must be retrieved from the various topics presented in the table on the next page.
Messages are received in a generic format described in Wirepas documentation and encoded in protocol buffer format:
https://developers.google.com/protocol-buffers.
Complete information related to message reception and encoding is provided in the following section of the Wirepas
GitHub:
https://github.com/wirepas/backend-apis/tree/master/gateway_to_backend
Sensor Data and MQTT topics
Data is sent by the gateway to a specific MQTT broker the server. The list of topics corresponding to the various sensors
in the BLUE MESH product line are provided in the following table.