Introduction
As the core layer of the Internet of Things, Huawei Cloud iot platform connects to various devices downward, integrates various industrial applications upward through open API, and forms Huawei Cloud iot solution with other supporting services. This chapter describes the key features and capabilities provided by Huawei cloud iot solution.
Equipment data acquisition
loT platform provides device data collection function. Supports device data subscription. The application subscribes to the loT platform. When the device reports data, the platform pushes messages to the application.You can view the current properties (the latest reported value) of the device. You can view the properties on the console or invoke the interface.
The loT platform supports the creation of device shadows, which are used to represent the latest data reported by storage devices (the Report area) and the latest configuration data of device attributes (the desired area). Report Area When the l0T platform obtains real device data, it synchronizes the real data to the report area of the device shadow. When the device is offline, you can obtain the latest device data through device shadow. Desired Area When the device is online, data in the shadow Desired area of the device is synchronized to the device in real time. If the device is offline, the data in the shadow desired area of the device is synchronized to the device after the device is online.
Command delivery Mechanism
The 10T platform provides two command delivery mechanisms: Immediate delivery: The loT platform immediately sends the received commands. If the device is offline, the delivery fails. Delivering commands immediately Applies to scenarios that require real-time command performance. Cache delivery: The platform queues the command after receiving it. When the device goes online, the platform sends the commands in the command queue one by one. Cache delivery is suitable for scenarios that have low requirements on real-time command performance.
Data forwarding
Data access services: collect, process, and distribute real-time streaming data. Distributed message service: A fully managed high-performance message queue service that provides a flexible and reliable asynchronous communication mechanism for distributed applications. Object storage service: a cloud storage service. Application and data integration Platform ROMA: Focuses on application and data connectivity, providing messaging, data, API, and device integration capabilities. LoT data analysis: integrate loT data integration, cleaning, storage, analysis, visualization, to provide one-stop service for loT data developers. MapReduce: Provides enterprise-level big data cluster cloud services that tenants can fully control. Real-time streaming computing: full stack capability for real-time processing of streaming big data.
References
https://www.huaweicloud.com/theme/452693-1-W-undefined
