Chiming Huang

Explore MQTT And The IBM IoT Services

by from IBM

SW Design
This Solution offers a software design service.
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IBM Bluemix IoT service acts as the MQTT broker, and is thus responsible for distributing messages to connected clients (devices and applications)

About this Solution:

Introduction

The IBM Bluemix Internet of Things (IoT) service provides a simple but powerful capability to interconnect different kinds of devices and applications all over the world. What makes this possible? The secret behind the Bluemix IoT service is MQTT.

Desigln for low-bandwidth, high-latency or unreliable networks

MQTT stands for MQ Telemetry Transport. It is a publish/subscribe, extremely simple and lightweight messaging protocol, designed for constrained devices and low-bandwidth, high-latency or unreliable networks. The design principles are to minimise network bandwidth and device resource requirements whilst also attempting to ensure reliability and some degree of assurance of delivery. These principles also turn out to make the protocol ideal of the emerging “machine-to-machine” (M2M) or “Internet of Things” world of connected devices, and for mobile applications where bandwidth and battery power are at a premium.

What you'll need to build your application

  • A Bluemix account
  • Familiarity with the Java programming language
  • Familiarity with MQTT
  • Optionally, familiarity with Node-RED

In general terms, the Bluemix IoT service acts as the MQTT broker, and is thus responsible for distributing messages to connected clients (devices and applications). Devices include machines that publish information they detect, and applications are the programs that consume the information received from those devices. Devices and applications communicate with the MQTT broker using the MQTT protocol, as shown:


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An app using the Bluemix IoT service usually consists of three parts:

  • Bluemix IoT service configuration (device and application registration)
  • Device-side programming
  • Application-side programming

How to start with?

Step 1. Set up the Bluemix IoT service

Register devices and applications with the Bluemix IoT service.

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Step 2. Create a device-side program

Device-side programming consists of three parts:

  • Connecting to the IoT service (MQTT broker)
  • Publishing events to applications
  • Subscribing commands from applications

Step 3. Create an application-side program

As with device-side programming, application-side programming consists of three parts:

  • Connecting to the IoT service (MQTT broker)
  • Subscribing events from devices or from the MQTT broker
  • Publishing commands to devices

Step 4. Run the app

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Ideal Partners

This Solution is most applicable for the following stages and categories:

  • Design for manufacturability
  • Mature stage
  • Wearables
  • Industrial Applications
  • Smart Home Devices

Brought to you by Chiming

Consulting at IBM
ABOUT IBM:IBM is a global technology and innovation company headquartered in Armonk, NY. It is the largest technology and consulting employer in the world, with more than 375,000 employees serving ...
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