Xu Shuang
Ankerui Electric Co., Ltd., Shanghai Jiading 201801
1 Overview
With the rapid development of the social economy, energy issues have become an important factor constraining economic and social development. The tight energy supply and rising energy prices have made energy costs in hotel operations a part of daily expenses. Savings and control on energy use have become a cost-saving and profit-making factor in hotel management. Important link. At the same time, the country has higher and higher requirements for energy conservation and emission reduction. Green, energy saving and environmental protection have become new trends in the development of the hotel industry. The introduction of the energy consumption monitoring system can provide the hotel with an accurate analysis of the energy use situation, find a space for energy conservation for the hotel, seek a reasonable energy saving plan, and provide strong support. The energy system is: power supply system, water supply system, gas supply system, cooling system, heating system, etc. The core of energy management is to conduct safe and reasonable real-time monitoring of the operation and status of electricity and water consumption in hotels. Scientific management. Haikang Hotel's energy consumption monitoring system is based on the Acrel-5000 energy-saving monitoring system independently designed by Ankerui Electric Co., Ltd., and the overall energy management solution for energy monitoring.
2 design standards
Ø “Interim Regulations on the Management of Architectural Intelligent System Engineering†Ministry of Construction 1997
Ø "civil electrical design specifications" (JGJ / T16 - 92) Construction
Ø "Intelligent Architectural Design Standard" ( DBJ08 - 4 - 95 ) Shanghai Municipal Construction Commission 1996
Ø “Code for Design of Architectural and Architectural Complex Cabling Engineering†China Construction Standards Association 1997
Ø National Regulation of Metrology Inspection of the People's Republic of China - Heat Energy Table ( JJG225-2001 ) National Quality Supervision Agency 2002
Ø “Building Communication Integrated Wiring System†( UD / T926 ) Ministry of Posts and Telecommunications 1997
Ø "Civil Building Electrical Design Specification"
Ø All computer hardware systems meet the following criteria:
Electromagnetic specifications: FCC Class B or CISPR22 ClassB
·Safety Specifications: UL Listed ( US ) or EN60950 (International)
3 system design
3.1 Overall System Design Description
This project is a comprehensive project of budget hotel office management. A comprehensive and effective energy consumption monitoring system will play an integral role in hotel management. It not only can accurately and effectively conduct real-time online statistics of hotel energy consumption, but also reduce the inaccuracy and lag caused by manual meter reading. Sex, and can automatically generate a variety of energy reports, horizontal and vertical comparison of energy consumption data, help hotel management to carry out energy analysis, to save energy and reduce costs. This design starts with the actual structure of the Jinjiang Inn Holiday Hotel's building structure and project, and collects and monitors the electricity usage of all 12 floors and floors. The entire energy consumption monitoring system can assist hotel management to achieve automatic management, reduce management and labor costs, and perform energy statistics at the same time as power collection. According to various energy consumption reports automatically generated by the system, energy saving can be achieved and energy waste can be avoided. Through the integration and analysis of real-time measurement data, it seeks energy-saving space for hotel operations, reduces energy costs, and detects the status of the system in real-time through automation to ensure stable and accurate use of the system.
3.2 Design Principles
1 advanced
The system is designed to follow the systems engineering design criteria, through scientific and rational design, the system as a whole to meet the needs of hotel energy consumption monitoring, to the use of Internet of Things technology, 3G mobile communications a series of mature technology, inheritable, have broad prospects for development The advanced technology enables the system to not lag behind in the next few years. Through software upgrades, more new functions can be achieved and users' investments can be protected.
2 practicality
In accordance with user requirements, adhere to the principle of practicality, to avoid the use of immature and overly advanced technologies and products, and on the basis of satisfying the detailed technical requirements put forward by users, make every effort to fully consider and provide scientific and reasonable optimization recommendations.
â‘¢ reliability
System reliability is the cornerstone of the long-term stable operation of the system. From the system design concept to the design of the system architecture, to product selection, the system reliability principle is adhered to; the wireless sensor network solution adopted has long been tested for wireless communication performance. The work is stable and the data is accurate.
4 Security
The management system software has passwords according to different levels of priority, which can prevent unrelated personnel from operating indiscriminately, modify costs, destroy system or data, encrypt and transmit data, and can use 32/64/128 -bit key encryption technology to ensure data security and users. Information is not leaked.
5 openness
The system design will adopt a standardized design, strictly follow the international, domestic and industry standards of related technologies, ensure the transparency and interoperability between systems, and fully consider the connection with other systems; in the design and equipment selection, the system The power collection is the center and reserves management interfaces for automatic measurement of other energy sources such as water, heat, and gas, scientifically predicts future capacity expansion requirements, and carries out margin design.
6 manageability, easy maintenance
This energy consumption monitoring system only installs acquisition equipment on the original energy consumption metering equipment. It does not make any changes to the water, electricity, heat, etc. line pipe structure, and is easy to install; it adopts a wireless ad hoc network to transmit data and does not need to be rebuilt. Work, truly plug-and-play; adopts Chinese-language, graphical software to realize the management and maintenance of the entire monitoring system, automatically detect the running status of each device in the system, and shows detailed parameters to assist management personnel to judge timely and accurately. Solve the problem; adopt stable and easy-to-use hardware and software, without any special maintenance tools, which not only reduces the cost of professional knowledge training for managers, but also saves the cost of daily frequent maintenance.
3.3 System Design
Acrel-5000 energy consumption monitoring system is mainly used for intelligent management of hotel's main energy-consuming equipment, as well as statistical analysis and planning management of hotel's total energy, energy consumption, energy costs, energy efficiency, and energy management. It is thinking, form, management, and management of hotels. Technical, innovative and other aspects provide a scientific and automated management platform, so as to directly achieve the hotel's overall goal of energy conservation and consumption reduction; to compare the hotel's energy consumption horizontally and vertically, to discover the efficiency of energy consumption, and to provide a certain theory for hotel pricing, etc. Based on analysis of energy utilization efficiency and energy saving potential in the hotel operation process; providing a platform from operational data to management data, hotel managers also understand the energy consumption of hotel operations in real time, without waiting for reporting data; can be customized on a variety of production The energy consumption report can provide a summary of the hotel's energy consumption, in line with the " Statistical Indicator System for Energy Consumption per Unit of GDP " formulated by the National Development and Reform Commission, the Statistics Bureau, and the State Environmental Protection Administration .
3.4 System Structure
Acrel-5000 energy monitoring system communicates using wireless communication. The design adopts 4- layer structure: Â
Information storage and processing layer: energy storage and processing platform monitoring data, mainly by the hotel server, computer, energy monitoring and management platform components.
Ø  Wide area communication network: It is mainly composed of wired and wireless networks of various operators and intranets of enterprises.
Ø  Wireless sensor network: The WSN network equipment developed mainly by the cetcStack wireless sensor network protocol, including WSN collectors, routers, and coordinators.
Ø  Information collection layer: It mainly consists of various energy consumption metering devices, including electronic meter, water meter, and heat meter.
The system used by the wireless sensor network having a MANET, self-maintenance, adaptation, scalability functions, network operation without human intervention, can be customized at 433 ~ 464MHz, 470 ~ 510MHz and other different communications bands. The network consists of coordinators, routers, and terminal equipment. It supports star, tree, and mesh networks. The maximum number of levels of the network is 15 , which can accommodate up to 65,536 nodes. The node's logical address uses a 6- byte ID . The network is a peer-to-peer network that is simple to install and truly plug-and-play. The communication protocol between the network and the host computer is rich in interfaces. The user can view various network information at any time, and can perform various forms of management and control on the network at any time, which is convenient, fast, stable and reliable.
3.5 System Features
(1) Remote query Â
Users can log in to the system through the Internet at any time and anywhere to view hotel energy consumption data. The system analyzes energy consumption data in real time, and sets and dynamically changes key network parameters such as network ID and operating frequency.
(2) Topology management Â
The system can manage the wireless sensor network equipment and the topology of the variable wireless sensor network in real time so as to better assist the equipment installers in equipment installation and commissioning.
(3) Data query Â
It shall have the function of querying historical data of any time such as building, floor, user number, user name, data time, and billing type;
(4) Report printing Â
With the default standard report print format, and with report format design software, users can customize the report print format as needed;
(5) permission settings Â
Should have multi-level operator password setting authority. Prevent irrelevant personnel from arbitrarily changing and viewing;
(6) Data Exchange Â
The data that users need to query can be exported directly in a standard and universal format, which can meet the requirements of intelligent system integration;
Ø (7) Real-time data display Â
In the graphical interface, real-time data such as energy consumption data and data sources should be displayed, and the energy consumption curve of the hotel's water, points, etc., and the usage curve of each floor should be displayed in a graphical state to facilitate the hotel managers to formulate plans for usage and consumption;
(8) Alarm Management Â
It can detect the working status of the system in real time, including: WSN collector, WSN router and so on. For the device's fault signal and type, alarms can be given through pop-up windows and sounds; Â
(9) Centralized meter reading Â
Ability to collect layer energy consumption devices through the Web interface for remote meter reading; Â
(10) System Monitoring Â
The user's use of real-time status monitoring information and a comprehensive log query, timely warning of human vandalism.
3.6 Operation Interface
Acrel-5000 energy monitoring system monitoring center management software is divided into the following modules: Â
1 Â Meter reading information: Â Contains all the daily hardware communication related operations, including remote meter reading, status checking, remote control and more. Â
2 Â Topology diagram: The network topology diagram represents the network link relationships of the WSN coordinator, router, and collector. Â
3 Data Management: Contains functions such as backing up and basic maintenance of system operating data. Â
4 Â Statistical report: Includes functions such as querying, analyzing, and statistics for the historical data that the system runs. Â
5 System Management: Set the basic parameters of system operation, including hardware parameters, instrument data, user data, planning tasks, operator information, etc. Â
Haikang Hotel Energy Monitoring System Login Interface
Haikang hotel energy consumption monitoring system main interface
Electricity statistics and graphic display interface
4 Major monitoring and metering
Application
model
The main function
High voltage critical circuit or low voltage inlet cabinet
APMD520
Three-phase I, U, kW, kVar, kVA, kWh, kVarh, Hz, cosΦ; four-quadrant electric energy metering, fundamental-wave active energy metering, harmonic active energy metering, multi-rate energy statistics, maximum demand statistics, event recording One-way zero-sequence current measurement, one-way temperature measurement; RS485/Modbus, large-screen LCD display; 3DI/2DO, two analog, Profibus-DP protocol optional
Low voltage inlet cabinet
ACR330ELH
LCD display, all-electric parameter measurement (U, I, P, Q, PF, F, S); four-quadrant electric energy metering, multi-rate electric energy statistics; THDu, THDi, 2-31 times of each harmonic wave component; voltage peak Factor, telephone waveform factor, current K factor, calculation of voltage and current imbalance; positive, negative, zero sequence component (including negative sequence current) measurement of power grid voltage current; 4DI+3DO (DO3 overvoltage, undervoltage, overcurrent , unbalance alarm); RS485 communication interface, Modbus protocol or DL/T645 protocol
Low-voltage connection cabinets and outlet cabinets
ACR220EL
LCD display, all-electric parameter measurement (U, I, P, Q, PF, F); four-quadrant energy metering, multi-rate energy statistics, maximum demand statistics; 4DI+2DO; RS485 communication interface, Modbus protocol
Power cabinet
ACR120EL
LCD display, all-electric parameter measurement (U, I, P, Q, PF, F); four-quadrant energy metering, multi-rate energy statistics, maximum demand statistics; 4DI+2DO; RS485 communication interface, Modbus protocol
DTSD1352
LCD display, all-electric parameter measurement (U, I, P, Q, PF, F, S); four-quadrant energy metering, multi-rate energy statistics, maximum demand statistics; current specification 1.5(6)A, 5 (20 ) A, 10 (40) A, 20 (80) A optional, RS485 communication interface, Modbus protocol or DL/T 645 protocol optional
Lighting box
DTSF1352
Current specification 1.5(6)A,
Optional 5(20)A, 10(40)A, 20(80)A, multi-rate energy statistics, energy pulse output, RS485 communication interface, Modbus protocol or DL/T 645 protocol optional
Three-phase energy metering
DDSF1352
Current, voltage measurement; single-phase energy metering
DDSD1352
Current specification 10 (60) A, programmable, multi-rate energy statistics, energy pulse output, RS485 communication interface, Modbus protocol or DL/T645 protocol optional
All-electric parameter measurement
(I, U, P, Q, S, PF, F)
Single-phase energy metering
DDSY1352
Current specification 10(60)A, single-phase energy metering, energy pulse output, multi-electrical parameter measurement, contact logic encryption card, RS485 communication interface, Modbus-RTU protocol, LCD liquid crystal display, matching logic encryption card and power system
Card prepaid meter
Water supply pipe
According to the relevant manufacturer model
The total amount of water used to measure the water flowing through the water supply pipe is suitable for one-way flow. Electronic direct reading technology is used to output the dial data directly via the RS485 bus without external power supply.
Gas pipeline
According to the relevant manufacturer model
Measuring the total volume of gas flowing through the gas pipeline, with a valve control function, using electronic direct reading technology, through the RS485 bus directly output the dial data, high measurement accuracy, no external power supply.
Centralized cooling and heating
According to the relevant manufacturer model
Measure and display the user's heating supply, the central air conditioning's cooling capacity, and the flow sensor, microprocessor and paired temperature sensor. The temperature sensor is automatically alarmed when the circuit breaker is open or short circuited, and the alarm is automatically triggered when the voltage is low or the attack is destroyed. Through the RS485 bus directly output the dial data, high measurement accuracy.
system integration
Acrel-5000 Building Energy Analysis Management System
On-line monitoring and dynamic analysis of key building energy consumption;
Calculate the building's total energy consumption, total electricity consumption, classified energy consumption, sub-item power consumption, electricity consumption per unit of building area, and electricity consumption per unit of air-conditioned area, etc., and convert and calculate the amount of standard coal in the form of statistics and display.
Classifying building energy consumption, itemized statistics, and large number of audits
Visually reflect and compare the values, trends, and distributions of collected data and statistical data
5 Concluding remarks
With the development of intelligent buildings and the widespread use of electricity, the intelligent integrated management of distribution systems for intelligent buildings has become an inevitable trend for the construction of state offices, office buildings and large-scale public buildings. The Acrel-5000-based energy introduced in this paper The consumption monitoring system can not only display the power running status and power usage status in real time, but also analyze and process the data, display it in a user-appropriate manner, satisfy the user's needs, realize the analysis and processing of the collected data, and generate various data. Electrical energy report, analysis curve, graphic, etc., greatly facilitate the user's use, facilitate the real-time monitoring of the distribution system and the remote meter reading and analysis of the electrical energy, and provide reference for the energy-saving technology of the intelligent building.
references:
[1] Electric Co. Acrel system solutions .20 13.1 Edition.
About the Author:
Xu Shuang, female, undergraduate, Ankerui Electric Co., Ltd., the main research direction for intelligent power monitoring and power management system, Email: Mobile QQ
"Atlas of Design and Application of Building Energy Consumption Monitoring and Management System" (atlas number: ACR12CDX301) edited by Ankerui Electric Co., Ltd. and Shandong Construction Electrical Technology Information Network, this atlas combined with Acrel-5000 energy consumption The monitoring system complies with the electrical design specifications and meets the requirements for the construction of energy-saving supervision systems for office buildings and public buildings of state agencies, to achieve the scientific and data-based management of green building energy use, and to achieve the goal of saving energy and reducing consumption of green buildings. The Atlas is applicable to the system design, construction, operation and maintenance of energy monitoring and management of office buildings and public buildings of newly-built or rebuilt national offices. If you need atlas, please provide your organization's name, department, address, zip code, contact person, contact telephone number, email address, fax 021-69155331, mail or QQ to Ankeru Xu cream engineer, Ankerui Electric will give you a free gift. .
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