Technical analysis of the application of intelligent energy consumption system of large buildings

Abstract of the 201801 of Shanghai Jiading Abstract: From the perspective of data acquisition and monitoring and intelligent analysis, the structural model, system architecture, technical characteristics and application practices of a large building intelligent energy consumption management system based on ANET gateway are introduced, and the software functions of the intelligent energy consumption management system are elaborated, which can provide reference
for the intelligent energy consumption system of similar large buildings.

Keywords: intelligent energy consumption control; Energy consumption structure; Energy saving control; Energy consumption management 1.
Background In 2007, the State Council issued the "Notice of the State Council on Printing and Distributing the Comprehensive Work Plan for Energy Conservation and Emission Reduction" (Guo Fa [2007] No.
15), which further clarified the goals, tasks and overall requirements for achieving energy conservation and emission reduction, and proposed to strictly manage building energy conservation, and establish a system
of energy consumption statistics, energy audits, energy efficiency publicity, and energy consumption quotas for large public buildings.

In order to implement the spirit of Guo Fa [2007] No.
15, the Ministry of Housing and Urban-Rural Development issued the Notice on Printing and Distributing Technical Guidelines for the Construction of Energy Consumption Monitoring Systems for State Organs and Large Public Buildings (Jianke [2008] No.
114), and organized the compilation of a series of technical guidelines and acceptance criteria for the "Energy Consumption Monitoring System for
Office Buildings and Large Public Buildings of State Organs".

These guidelines unify the classification, itemization methods and coding rules of energy consumption data, and realize the real-time collection, accurate transmission, scientific processing and effective storage
of itemized energy consumption data.

The Acqua energy management cloud platform is developed
with reference to a series of technical guidelines and acceptance criteria of "Energy Consumption Monitoring System for Office Buildings and Large Public Buildings of State Organs".

It not only meets the requirements for the classification and sub-metering and upload of individual buildings, but also meets the requirements of unified monitoring and management of
energy consumption as a government platform.

2.
The energy consumption management platform of the networking scheme can generally be divided into three layers
from the structure.

Metering layer: The metering layer is mainly to measure the energy consumption
of various equipment and regions by installing various classified sub-energy consumption meters such as electricity meters, water meters, gas meters, cold and heat meters on the building site.

All instruments use intelligent remote transmission instruments
with communication interfaces.

The instrument can be networked using the RS485 fieldbus for data transmission
via the Modbus protocol.

Gateway layer: The gateway layer is mainly through the use of intelligent gateway (recommended by our ANet series), the main role of the intelligent gateway is to collect meter data through RS485 bus and a variety of communication protocols, and transmit data to energy consumption cloud services through the power consumption protocol through the protocol conversion function of the
gateway.

The main features of the gateway support protocol conversion, data encryption transmission, and support resumable upload
.

Platform management layer: The platform management layer mainly deploys different services
in the server.

Servers can be rented for commercial cloud servers, government platforms can use government cloud servers, and physical servers
in data centers can be used.

The server uses one or more servers to deploy database services, data receiving services, data computing services, and web services
.

The platform management provides a series of services to meet the needs
of data processing, user use and so on.

3.
Platform Features 3.
1 Comprehensive energy consumption statistics support electricity, water, gas, cooling capacity, heat, compressed air, Steam and other energy access 3.
2 standard networking scheme data access in accordance with the requirements of the Ministry of Housing and Urban-Rural Development standards can access the platform 3.
2.
1 a large number of data storage using big data technology, mass storage, fast query 3.
2.
2 reliable data transmission using AES128 encryption algorithm for data encryption transmission, to ensure security; support resumable transmission, to ensure data stability and reliability; 3.
2.
3 efficient early warning model supports a variety of alarm models, to ensure the rational use of energy 4.
platform function Introduction 4.
1 comprehensive Kanban comprehensive Kanban function includes GIS map, can be used to display the distribution of all buildings
。
For the increase or decrease in energy consumption of buildings this week and last week, it is represented
by red and blue charts, respectively.

The platform can display the building information
of the current platform according to the comprehensive energy consumption of the area and the combined energy consumption of the folding standard.

The platform can display the number of platform access instruments, the total area of the platform access building, and the total energy consumption of the platform access building in the previous month
.

At the same time, the page also has the results of big data analysis for different dimensions of
data.

4.
2 Building sub-project energy consumption statistics are sorted out according to the standards of local ministries of housing and urban-Rural Development, showing classified sub-item energy consumption
。
You can query the daily, monthly and annual energy consumption data in each time period, and you can put the classification or sub-energy consumption of multiple buildings into a unified interface according to the 4.
3 multi-building classification sub-comparison such as bar chart, pie chart, table
, etc.

You can view the sub-or itemized data
of the selected building on a time-by-hour, day-by-day, month-by-month, and yearly basis.

The data is displayed in the form of graphs or tables
.

4.
4 User reporting platform software provides monthly analysis reports, which mainly contain classified sub-item energy consumption of buildings, year-on-year analysis data of each sub-item and sub-proportion data
.

At the same time, the report also provides the detection of data anomalies and generates anomaly statistical curves and anomaly classification
.

5.
Recommended equipment 5.
1 ANet series communication gateway main features: rich interface: support serial port, Ethernet, 4G, Lora protocol is diverse: support Modbus-RTU, DL/T 645, CJT/188, MQTT, 104, energy consumption protocol and other powerful functions: support power failure alarm, hierarchical alarm, data calculation, resumable transmission, data encryption and other management convenience: remote configuration, remote upgrade, Remote monitoring gateway report: electromagnetic compatibility: GB/T 17626.
2-2018 "electromagnetic compatibility test and measurement technology electrostatic discharge immunity test" level
4.

GB/T 17626.
6-2017 "EMC Test and Measurement Technology Radio Frequency Electromagnetic Field Radiation Immunity Experiment" Level
3.

GB/T 17626.
4-2018 "EMC Test and Measurement Technology Electrical Fast Transient Burst Immunity Test" Level
4.

GB/T 17626.
5-2019 "EMC Test and measurement technology surge (shock) immunity test" level
4.

GB 9254-2016 "Radio Disturbance Limits and Measurement Methods for Information Technology Equipment" is qualified
.

GB/T 17618-2015 "Information Technology Equipment Immunity Limits and Measurement Methods" is qualified
.

6.
Conclusion With the end of building energy consumption data access in some areas, the work center of platform managers has changed from focusing only on data access to focusing on the stability and reliability of data, and began to consider more about whether current data can provide more optimized energy-saving services
for the owners of public buildings.

The Acqua Energy Cloud Platform can not only meet the urgent needs of platform users for data access, but also optimize and replace the original platform system to better provide users with a variety of energy management and data management services
.

References:[1] "State Organs Office Buildings and Large Public Buildings Energy Consumption Management System - Sub-project Energy Consumption Data Collection Technical Guidelines"[2] "State Organs Office Buildings and Large Public Buildings Energy Consumption Management System - Sub-item Energy Consumption Data Transmission Technical Guidelines" [3] "State Organs Office Buildings and Large Public Buildings Energy Consumption Management System - Building Sub-metering Design and Installation Technical Guidelines" [4] "State Organs Office Buildings and Large Public Buildings Energy Consumption Management System—— Technical Guidelines for Data Center Construction and Maintenance[5] Energy Consumption Management System for State Organs and Large Public Buildings - Construction, Acceptance and Operation Management Code[6] Energy Consumption Management System for State Organs and Large Public Buildings - Software Development Guidance Manual[7] 2018 Yong DX-05 "Ningbo Municipal Building Energy Consumption Monitoring System Implementation Rules"[8] DGJ08-2068-2012/J11542-2012 《 Public Building Energy Monitoring System Engineering Technical Specifications" Author Profile Ren Yunye, male, Ankerui Electric Co.
, Ltd.
, the main research direction is photovoltaic monitoring, energy consumption monitoring
.