YD/T 4404.1-2023
Trusted IoT Cloud Platform Capability Assessment Method Part 1: General Requirements (English Version)

Standard No.

YD/T 4404.1-2023

Language

Chinese, Available in English version

Release Date

2023

Published By

Professional Standard - Post and Telecommunication  CN  /  YD

Latest

YD/T 4404.1-2023

Introduction

Analysis of the Standard Core Framework

Evaluation dimensions	Core indicators	Technical requirements	Test methods
Basic trust requirements	Service availability ≥ 99.9%	Unplanned downtime ≤ 43.2 minutes/month	Log audit + stress testing
Device management	Concurrent connections ≥ 1000	Support 5 protocols including MQTT/CoAP	Simulated device cluster test
Data management	Persistence ≥ 99.99%	JSON/binary format support	Data integrity check

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Detailed explanation of key technical requirements

1. Basic trust requirements of cloud platform

Chapter 7 of the standard clearly requires:

• Data destructibility: Physical deletion is required when the device is deactivated, and demagnetization is required when the storage device is scrapped
• Resource allocation: The response time for expanding computing resources should be ≤ 5 minutes (SSD storage expansion case)
• Fault recovery: A three-level alarm mechanism needs to be established (15-minute response for P0-level faults)

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2. Device management capabilities

NB-IoT water meterAccess case:

1. LWM2M protocol is used to achieve low-power connection
2. Data reporting frequency is 1 time/hour (meet the data persistence requirements of Article 7.3)
3. OTA upgrade needs to pass SHA-256 signature verification

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Standard evolution and implementation suggestions

Technology evolution trend

Compared with the 2015 version of the national standard for cloud computing, this standard adds:

• Device access delay ≤100ms (Article 8.7)
• Rule engine configuration requirements (Article 9.4)
• API permission granularity control (Article 10.5)

Enterprise implementation path

1. Compliance construction stage: Complete 7.1-7.11 basic trusted item certification
2. Capability enhancement phase: Realizing full life cycle management of equipment (8.1-8.7)
3. Service optimization phase: Building a data flow analysis platform (9.1-9.4)

YD/T 4404.1-2023 Referenced Document

• GB/T 32399-2015 Information technology.Cloud computing.Reference architecure
• GB/T 32400-2015 Information technology.Cloud computing.Overview and vocabulary

YD/T 4404.1-2023 history

• 2023 YD/T 4404.1-2023 Trusted IoT Cloud Platform Capability Assessment Method Part 1: General Requirements

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