Property Reporting Overview

Introduction

Property reporting is a method by which IoTDA parses, caches, and forwards data to applications or other Huawei Cloud services through data forwarding. Product models need to be established on the platform. The platform records the latest reported property value and stores the data that complies with the product model definition. The device can obtain the latest device properties from the platform through device shadow.

Figure 1 Device reporting properties

Scenarios

• Data of devices and applications needs to be converted, managed, and cached by the platform.
• Data needs to be forwarded to other Huawei Cloud services for storage and processing based on data forwarding rules.

Constraints

• Maximum size of a single message: 64 KB.
• A product model is required. The reported data must match the properties defined in the product model.
• Maximum number of child devices of which properties can be reported by a gateway at a time: 100.