GB/T 47474-2026General technical requirements for the energy efficiency operation platform of civil buildings (English PDF)

1 Scope

This document outlines the overall functional architecture of energy efficiency operation platform of civil building. It specifies the platform's basic requirements, as well as the building equipment and facilities layer, infrastructure support layer, platform support layer, application layer, security requirements, and operation and maintenance management.

This document applies to the planning, construction, and operation and maintenance of energy efficiency operation platform of civil building.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB/T 17166, General principle of energy audits

GB/T 22239, Information security technology -- Baseline for classified protection of cybersecurity

GB/T 34913, Classification and presentation of civil building energy use

GB/T 35273, Information security technology -- Personal information security specification

GB/T 35274, Data security technology -- Security capability requirements for big data services

GB/T 39786, Information security technology -- Baseline for information system cryptography application

GB/T 43697, Data security technology -- Rules for data classification and grading

GB 50314, Standard for design of intelligent building

GB/T 50378, Assessment standard for green building

GB/T 51161, Standards for energy consumption of building

GB/T 51285, Standard for the energy-efficient effect evaluation of building energy performance contracting

GB 51348, Standard for electrical design of civil buildings

GB/T 51366, Standard for building carbon emission calculation

GB 55015, Standard for lighting design of buildings

JGJ/T 288, Standard for building energy performance certification

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

4 Abbreviations

The following abbreviations apply to this document.

AI: Artificial Intelligence

BACnet: Building Automation and Control Networks

BIM: Building Information Model/Modeling

COP: Coefficient of Performance

ECI: Energy Cost Intensity

EUI: Energy Use Intensity

MQTT: Message Queuing Telemetry Transport

NB-IoT: Narrow Band Internet of Things

PC end: Personal Computer End

PUE: Power Usage Effectiveness

5 Overall functional architecture

The overall functional architecture of the energy efficiency operation platform of civil building consists of four horizontal functional layers and two vertical support systems.

It comprises six components: the building equipment and facilities layer, the basic support layer, the platform support layer, the application layer, security requirements, and operations and maintenance management. Each horizontal layer depends on the layer beneath it, while security requirements and operations and maintenance management span all four horizontal layers vertically. Detailed descriptions of each component are provided below.

- The building equipment and facilities layer encompasses systems such as heating and cooling sources, air conditioning and ventilation, water supply and drainage, power supply and distribution, lighting, elevators and escalators, renewable energy, environmental monitoring, and building equipment monitoring and control. It supplies the platform with various data resources - including energy consumption, equipment operating status, and basic building information - and responds to and executes control commands issued by the upper layer.

- The foundational support layer encompasses edge processing, computing, storage, and networking, providing stable and efficient technical resource support for the upper-level platforms and applications.

6 Basic requirements

The platform shall carry out full-lifecycle planning, construction, and operation and maintenance in accordance with standards such as GB 55015, GB/T 34913, GB 50314, GB/T 50378, GB/T 51161, GB/T 51285, GB 51348, GB/T 51366, and JGJ/T 288, and shall comply with the following provisions:

a) Planning and design shall be based on the specific functional use of the civil building, the categories of energy consumption, and the characteristics of the energy-consuming equipment;

b) For the collection of energy consumption data at the building equipment and facilities layer, it is advisable to utilize the existing functions of systems such as building equipment monitoring and building energy efficiency supervision to achieve data sharing;

c) Transmission media and cables shall be selected based on requirements such as the signal transmission method, transmission distance, system security, and environmental conditions.

7 Building equipment and facilities layer