Sparkplug Essentials 04 - Sparkplug Key Principles скачать в хорошем качестве

Sparkplug Essentials 04 - Sparkplug Key Principles

In this video, we introduce you to the eight key principles for MQTT Sparkplug: 1. Publish / Subscribe Architecture 2. Report by Exception 3. Continuous Session Awareness 4. Death and Birth Certificates 5. Persistent Connections 6. Auto Discovery 7. Standardized Payload Definition 8. Standardized Topic Namespace ** The Key Principles in Detail ** 1. Publish / Subscribe Architecture This displaces the old poll-response pattern, which had certain disadvantages. The modern decoupled publish-subscribe approach enables features like instant messaging and one-to-many communication 2. Report by Exception Also based on a modern publish-subscribe pattern, Report-By-Exception saves a significant amount of bandwidth and computing power compared to the old poll-response pattern. The communication is also faster and more reliable since it uses push communication and does not need to wait for the next pull-response cycle when data or a device state changes. 3. Continuous Session Awareness This is an important monitoring feature for online/offline states of devices. It provides a correct real-time view of the state of all devices, gateways, and applications in your deployment. 4. Death and Birth Certificates This feature is used for the management and discovery of device states. As soon as an MQTT client goes online, it is required to send out a birth certificate. When it goes offline, the MQTT broker recognizes the changed state and informs every subscribed client by sending a death certificate. 5. Persistent Connections All devices, gateways, and applications in a deployment use persistent TCP connections 6. Auto Discovery Sparkplug provides Plug & Play interoperability. This is ensured by auto-discovery of device states, and what data will get sent. 7. Standardized Payload Definition Defining a standard data format for all messages guarantees faultless communication between all participants. 8. Standardized Topic Namespace This is also a requirement for Plug & Play interoperability. A common topic namespace used by all Sparkplug participants. ** Chapters / Table of Contents ** 00:00 The Key Principles of MQTT Sparkplug 00:50 Publish / Subscribe Architecture 01:55 Report by Exception 03:34 Continuous Session Awareness 04:40 Death and Birth Certificates 06:07 Persistent Connections 06:24 Auto Discovery 07:16 Standardized Payload Definition 08:05 Standardized Topic Namespace We're looking forward to seeing you for MQTT Sparkplug Essentials part 5: Sparkplug Components. ** Link to Resources ** 👉Read more about MQTT Sparkplug in this blog series: https://bit.ly/3jg2Lgx 👉 Want to learn about MQTT and MQTT 5, get your free copy of the MQTT Essentials e-book: https://bit.ly/3jgQ70Y 👉 Learn more about HiveMQ here: https://bit.ly/38bxHrX 👉 Learn more about HiveMQ Cloud here: https://www.hivemq.com/mqtt-cloud-bro... 👉 Subscribe to our HiveMQ channel to get video updates. Hit the subscribe button below or subscribe to our newsletter (http://newsletter.social/hivemq) to keep up to date on the latest MQTT news. #MQTTSparkplug #MQTT #IoTSpecification #IIoT