Abstract: With the continuous expansion of the application scope of information technology in colleges and universities, colleges and universities are gradually moving towards informatization in energy consumption management, the purpose of which is to improve management efficiency, apply more resources to reasonable projects, so as to achieve resource optimization and conservation, and make universities become an ecological link of environmental restoration. This paper discusses the importance of energy conservation supervision system in colleges and universities, and analyzes the information management and application measures of energy conservation supervision system in colleges and universities, so as to improve the energy consumption management level of universities.
Keywords: universities; Energy Conservation Regulatory System; Information management
1. The importance of the energy conservation supervision system in colleges and universities
1.1 It is conducive to the unified supervision of energy data
After the use of energy-saving supervision system, the management of energy data has standardized and unified data standards, data storage and sharing are smoother, and when applying the trend and characteristics of analyzing data, it is easier to use information means to achieve, and the results are standardized and unified. Therefore, energy consumption analysis and supervision can be standardized, which is conducive to the implementation of the energy-saving supervision system.
1.2 Facilitate accurate metering of energy consumption data
Using the energy-saving supervision system, energy consumption can be measured digitally, real-time measurement can be carried out through smart meters, and the measurement information is stored in the database at the same time. This process is automatically analyzed and processed by the computer, so as to avoid the existence of human error and achieve accurate measurement.
1.3 It is conducive to the improvement of energy consumption statistical work efficiency
When information management of university energy, energy consumption data collection, data collation, data preservation, data analysis, etc. no longer need to be completed manually, but automatically completed by computers, smart meters and other instruments and equipment. In particular, the energy statistics and audit function that comes with the system can automatically perform statistical analysis on energy consumption-related data, so as to obtain the desired analysis results in real time, so that energy consumption statistics are truly automated and efficient.
1.4 It is conducive to the zoning management of energy in universities
There are many organizations and departments in colleges and universities, and the energy required for scientific research, teaching, and management is different. After the application of energy-saving supervision system, department differentiation and consumption differentiation can be carried out through the computer, so as to accurately manage energy, achieve effective management, energy conservation and environmental protection.
1.5 It is conducive to the immediate publicity of energy consumption of universities
Information supervision of energy consumption, can realize automatic management through the computer, and the management process through the communication module signal conversion transmission to the terminal display screen, to achieve the purpose of instant publicity of energy consumption, so as to promote the relevant personnel of various departments to actively participate in energy saving.
2. Information management and application of energy conservation supervision system in colleges and universities
2.1 Overall planning of energy conservation supervision system in colleges and universities
In the design stage, it is necessary to grasp the architecture of the energy-saving supervision system as a whole, which can be gradually implemented and refined. From the functional point of view, the entire architecture can be divided into three parts: (1) device layer. It mainly plays a connecting role in the system, so as to realize the consumption tracking process of water and electricity; (2) Communication layer. Its function is to convert the data tracked by the device into a signal and then upload it to the management to play a role in data transmission; (3) Management. Its function is to organize, count and analyze the uploaded data, and save the data to the database. Under the management, energy consumption metering is clear at a glance.
2.2 Lighting and electricity saving in the energy-saving supervision system of colleges and universities
Universities are getting bigger and bigger, and the teaching buildings, teaching and research offices, libraries, logistics, etc. are also getting bigger and bigger, which all need lighting systems to provide light source supplements. In this process, the use of power-saving control system can effectively save unwanted lighting energy and achieve energy saving. This system mainly uses sensors to collect all lighting data, convert the data and transmit it to the management, the management uses a unified management platform for the specific analysis of lighting power consumption, so as to find the lighting system has excessive energy consumption, power failure and other abnormal situations, fault location, and energy-saving automatic processing, to achieve electricity safety and power saving. If combined with the camera to automatically determine the uninhabited area, the control system will automatically process the lights off, so as to achieve the purpose of energy saving.
2.3 Air conditioning in the energy-saving supervision system of colleges and universities saves electricity
The air-conditioning power-saving control system mainly starts from the three functional architectures to optimize and control the power consumption of the air-conditioner to achieve the best air-conditioning application effect by consuming less electric energy. The entire control system is subdivided into sensors, communication modules, control modules, storage modules, and analysis modules under three major architectures. These subdivided modules keep their own positions and coordinate operation to realize the constant monitoring and control of air conditioning electricity, so as to realize the automatic analysis and processing of electricity consumption. The most obvious feature of the system is that the air conditioning unit in the system can be monitored in real time, optimized and controlled in real time. At the same time, the system applies infrared remote control technology, which can automatically adjust power consumption according to changes in ambient temperature and somatosensory parameters caused by the number of personnel.
2.4 Street lamps in the energy-saving supervision system of colleges and universities save electricity
The street lamp supervision system carries out automatic energy-saving management of street lamps distributed in all corners of the university, so as to achieve the purpose of power saving. Each street lamp has a light sensor and controller to collect and analyze the illuminance, so as to automatically regulate the use of electricity, so as to achieve the effect of using the lamp with electricity without power off. This system can realize the intelligent management of street lights, remote power control through the computer, and analyze the actual operation of street lamps to ensure that the power and current in the system are at normal levels, and finally realize system monitoring and energy saving. Abnormal abnormalities can be handled in time to avoid the occurrence of unsafe electricity use.
2.5 Energy saving in heating of the energy conservation supervision system of colleges and universities
University heating mostly uses coal as energy, which needs to be used efficiently and energy-saving, so that universities become coal-saving users. Therefore, the university heating energy-saving system installs temperature sensors and temperature compensators in the heating system, which can collect and compare the water temperature and outdoor air temperature online in real time, and give automatic quantitative control goals, so as to realize heating automation, avoid overheating and waste of coal, and overcooling can not play a heating role. At the same time, a temperature controller is installed in the building for the heating system to effectively control the indoor temperature. Through this kind of instruments and equipment that can control heat, different heating parameters can be set in time periods and spatial areas to meet the different heating needs of universities and achieve heating energy saving and energy saving. In addition, the temperature controller has a heat reflux effect, when the ambient temperature and the temperature of the water in the pipeline have a large temperature difference, the reflux heat can effectively prevent the pipeline from freezing and cracking, so as to achieve the role of protecting the pipeline.
2.6 Water use control in the energy conservation supervision system of colleges and universities
Although the water is getting less and less, colleges and universities are densely populated areas, the demand for water resources is very large, the use of water-saving control system can scientifically and reasonably allocate water resources to achieve the purpose of water saving. The system is mainly composed of two parts: water-saving controller and water meter, the metering instrument measures the water use, and records it in the table, collects and saves all data manually, and enters the information into the controller after folding for water-saving actions. Waste behaviors such as dripping water and long flow of water can be automatically controlled by the controller to avoid waste. In addition, the water-saving system can continuously record and count the water consumption of colleges and universities in different time periods, and detect abnormal running water in time, so as to effectively control water consumption.
2.7 Low-voltage distribution detection of energy conservation supervision system in colleges and universities
The low-voltage distribution detection system monitors the current, voltage, power and other low-voltage data of low-voltage lines in real time through instruments and equipment such as energy meters, information collectors, and sensors, so as to grasp the contact power consumption of lines and terminal electrical appliances. The main functions of the system are as follows: (1) it can regularly carry out statistical analysis of electricity consumption data and grasp the specific electricity consumption trends and laws; (2) The power distribution situation and electricity consumption measurement of the system can be displayed in real time, which is convenient for management; (3) The system has abnormal situation monitoring and alarm function, and when abnormal electricity consumption or leakage is found, the system can automatically alarm and cut off the power supply in time; (4) The real-time power consumption analysis of the low-voltage distribution system enables abnormal situations such as current, voltage and power to be found in the first time, so as to improve the management of low-voltage distribution.
2.8 Pipeline management of energy conservation supervision system in colleges and universities
The comprehensive pipeline management system is carried out for the graphical management of waterway pipelines and circuit pipelines in colleges and universities. Through this system, not only can the running status of the pipeline be supervised, but also various editing operations can be carried out to realize the management, analysis and maintenance of the pipeline.
3. Comprehensive energy efficiency solutions for universities
3.1 Campus power monitoring and operation and maintenance
Integrate all equipment data, comprehensive analysis, collaborative control, optimized operation, centralized regulation, centralized monitoring, digital inspection, mobile operation and maintenance, team re-optimization and integration, and reduce manpower allocation.
3.2 Logistics billing management
Adopt network meter reading payment management technology to realize comprehensive billing of electricity, water, gas and other energy, realize remote meter reading, rate setting, bill statistics summary, etc., support WeChat, Alipay, card and other recharge payment methods, and set up subsidy schemes. Through the management of energy payment, cultivate the energy-saving awareness of energy-using groups and departments.
3.2.1 Dormitory electricity management
Management and control of electricity consumption in student dormitories: basic electricity quota and timing on-off function can be issued in batches; It can identify malignant loads, detect illegal electrical appliances, and obtain illegal power trip records.
3.2.2 Utility charges for shops
Prepaid management for campus supermarkets, shops, canteens, and other individual water and electricity consumption.
3.2.3 Charging pile management platform
Charging piles are indispensable in the information energy structure of "source, grid, load, storage and charging". Charging pile application management is also an indispensable part of campus life services.
3.2.4 Intelligent lighting management
Through the global monitoring of university street lights, it provides flexible and intelligent management of street lamps, and realizes the timing switch, forced switch, brightness adjustment, and timing control scheme of any line and any street lamp on campus to ensure the intelligent control and high efficiency and energy saving of street lamp lighting.
3.3 Energy Management System
Statistical analysis of various connected energy sources such as campus water, electricity, and gas, including year-on-year analysis, chain score analysis, loss analysis, etc. Understand total energy use and where energy is flowing.
Various types of building power consumption data collected and counted according to the classification of campus buildings. For example, the power consumption of office buildings, teaching buildings, student dormitories, etc., analyze the data by category, provide leadership decisions, and improve management efficiency.
Build a database that meets the content and requirements of campus energy-saving supervision, automatically complete the collection of energy consumption data, automatically generate various forms of reports, charts and systematic energy consumption audit reports, monitor the operating status of energy-consuming equipment, set control strategies, and achieve energy saving.
3.4 Intelligent fire protection system
Based on modern information technology such as the Internet of Things, big data, and cloud computing, the smart fire cloud platform connects scattered automatic fire alarm equipment, electrical fire monitoring equipment, smart smoke detectors, smart fire water and other equipment to form a network, and intelligently senses, identifies and locates the status of these equipment, collects fire information dynamically in real time, and conducts data analysis, mining and trend analysis through the cloud platform to help achieve the goals of scientific early warning of fire, grid management, and implementation of multiple responsibility supervision. It has realized unmanned duty smart fire protection, and realized the "automated", "intelligent" and "systematic" requirements of smart fire protection. From fire prevention, to fire alarm, to control linkage, operating in a unified system platform, users, security personnel, and supervision units can intuitively see the operation status of various fire fighting equipment and sensors in each building through the platform, and can quickly notify relevant personnel in the event of emergency and non-emergency situations such as hidden dangers and fires in a few seconds.
4. Platform deployment hardware selection
4.1 Power monitoring and operation and maintenance platform
4.2 Logistics billing management
4.2.1 Dormitory/Commercial Prepaid Platform
4.2.2 Charging pile management platform
4.2.3 Intelligent lighting management
4.3 Energy Management System
4.4 Intelligent fire protection system
4.4.1 Electrical fire monitoring system
4.4.2 Fire equipment power monitoring system
4.4.3 Fire door monitoring system
5 Concluding remarks
The rational use of the energy conservation supervision system of colleges and universities is conducive to the unified supervision of energy data, the accurate measurement of energy consumption data, the improvement of energy consumption statistical work efficiency, the zoning management of energy in colleges and universities, and the real-time publicity of energy consumption in colleges and universities.
[References]
[1] YAN Xian. Discussion on the application of energy conservation supervision platform construction in colleges and universities[J].Computer CD Software and Application,2014(24):78-80.)
[2] Star. Information management and application of high-efficiency and energy-saving supervision system[J].Beijing:China Building Industry Press,2019(27):168-170.)
【3】Comprehensive Energy Efficiency Solution for Universities 2022.5 Edition.
【4】Enterprise Microgrid Design and Application Manual 2022.05 Edition.
About the author:
An Yueqiang, male, currently works at Accuray Electric Co., Ltd., whose main research direction is the supply and distribution of power for smart grids.