Main Function Settings; Mqtt Introduction - ICP DAS USA BRK Series User Manual

BRK Series User Manual V1.0 - ICP DAS

3. Main Function Settings

This chapter describes the main function and setting method of the BRK .

3.1 MQTT Introduction

MQTT (Message Queuing Telemetry Transport) is a communication architecture developed by IBM for the
Internet of Things (IoT). It is useful for mobile applications because of its small size, low power usage,
minimized data packets, and efficient distribution of information to one or many receivers, especially in
unstable networks. MQTT is implemented based on the publish/subscribe architecture. In its network,
there is a server (Broker) responsible for the intermediary layer of information, and other devices can
send information to the Broker by publishing a topic, or get information from the Broker by subscribing
to a topic.
BRK-2800 is Sever of MQTT, can connect with large amount of ICP DAS modules with MQTT protocol: for
example, the DL-300 series of data Logger sensors which can measure CO, CO2, Temperature, Humidity
and Dew Point information. The communication mechanism that supports MQTT publishes the collected
on-site environment parameters to the BRK-2800, and can simply monitor the on-site environment from
a long distance by subscribing to the BRK-2800 using a mobile device or SCADA software that supports
MQTT Client. The Ethernet I/O modules of the MQ-7200M series can automatically publish the collected
digital I/O values to the BRK-2800 through MQTT. The MQTT Client only needs to subscribe and publish
to the BRK-2800 to monitor or change remotely DO status of the Ethernet I/O modules.
MQTT Architecture of the BRK:
17