Abstract:With the current development status of power enterprises in mind, it is evident that there is a high reliance on reliable electricity metering and remote meter reading during power operations. It is essential to focus on expanding their practical application scope to meet the actual needs of long-term and stable development for power enterprises. Based on this, this article will analyze the applications of electricity metering and remote meter reading to provide reference information for enhancing the overall production level of electricity production in our country.
Keywords:Electrical metering, remote meter reading, power monitoring, energy consumption management
0. Preface
In-depth analysis of electricity metering and remote meter reading applications is crucial for reducing power production costs and minimizing unnecessary economic losses for power supply companies. This ensures the achievement of the goal of maximizing production benefits for enterprises. Therefore, it is necessary to approach the effective analysis of electricity metering and remote meter reading applications from various angles, ensuring these devices achieve the anticipated effects in practical application.
Analysis of various meter reading modes and remote meter reading system structures
1.1 Analysis of Various Meter Reading Modes
Under the support of power electronics technology, wireless network technology, and other technologies, the industrial scale of the power industry is gradually expanding, and the traditional meter reading methods are continuously being improved. The current meter reading methods in the power industry include: (1) Manual meter reading. As a traditional method, it relies heavily on human resources, involves significant labor, and has a high error rate, thus posing limitations in its application; (2) Scientific pre-paid system. Essentially a power marketing model, it requires users to purchase a card before using electricity. Once the card's balance is depleted, the system automatically stops power supply. This method is efficient and adaptable, but it is challenging to exchange large amounts of data, affecting the realization of the information management goals of power enterprises; (3) Remote meter reading with promising prospects. Also known as an automatic meter reading system, it integrates various technologies during construction, achieving information management in power enterprises and serving as an important power marketing model. The system is characterized by its powerful functions, high efficiency, low cost, and has a good market development prospect. The comparative analysis of these three meter reading methods is shown in Table 1.
Table 1: Comparative Analysis of Three Meter Reading Modes
|
Different meter reading modes |
Workstyles in Practical Applications |
Application Effect |
|
Manual Meter Reading Mode |
Meter readers visit homes to read meters. |
High error rate, heavy workload |
|
Pre-paid System Model |
Users can pay with their card for the electricity supplier. |
Electricity procurement restrictions; low level of information management |
|
Remote Meter Reading Mode |
Achieve the collection of customer electricity usage information |
Excellent transmission security, high efficiency |
1.2 Analysis of the Remote Meter Reading System Structure
By integrating various technologies, it is beneficial to construct a powerful remote meter reading system. The system has demonstrated good practical effects, with the specific system structure illustrated in Figure 1.
Figure 1: Remote Meter Reading System Structure Diagram
As shown in Figure 1, the remote meter reading system operates reliably in a data center, enhancing meter reading efficiency while achieving information management for power supply enterprises. Currently, various remote meter reading methods are in use, such as power line carrier remote meter reading systems, bus meter reading methods based on computer serial ports, and CPRS/CDMA wireless network data transmission systems. These belong to the category of remote meter reading modes, and different application types should be determined based on actual circumstances.
2. Analysis of Energy Meters and Collection Devices During Meter Reading Process
2.1 Analysis of Energy Meters During Meter Reading Process
With the current application status of electrical energy measurement devices, it is evident that different types of devices exhibit varying effects during use. Specifically, the following is observed: (1) Traditional mechanical electricity meters used in practical production. These devices consider the principle of electromagnetic induction, utilizing the mechanism of a changing electric field to produce a magnetic field, generating a torque within the meter to achieve electrical energy measurement. Supported by a mechanical wheel, they meet the requirements of electrical energy measurement work. (2) Pulse electricity meters used in practical applications. These meters include electrical energy measurement and pulse components, achieving electrical energy measurement through a pulse method. (3) Infrared interface electricity meters and electronic electricity meters used in practical applications. Essentially, the infrared interface electricity meters are electronic meters, which require the storage of collected data and output under the support of infrared adjustment signals to achieve electrical energy measurement. At the same time, as a new type of industrial-grade electricity meter, the electronic meter considers the internal transformer reduction, integrates the method of converting analog quantities to digital quantities, stores the collected data, and maintains the efficiency of electrical energy measurement operations.
2.2 Data Collection Device During Meter Reading Process
In the current situation, focusing on the efficient utilization of remote meter reading modes is beneficial for reducing meter reading costs and better adapting to the development requirements of the times. In the practical application of remote meter reading modes, it is necessary to introduce remote collection devices to meet various electricity metering needs. There are many types of remote collection devices in the electricity market, such as mechanical meters, electronic meters, and pulse meters, which are essentially all remote collection devices. The working principles of these devices in practical applications are as follows: if mechanical meters are used, the collection device needs to set up photoelectric elements and Hall elements during the actual operation, process the collected data, and finally transmit it to the data processing center; if electronic meters are used, electricity metering is realized through the role of data communication channels under the support of the 485 communication protocol.
3. Safety Analysis in the Practical Application of Electric Energy Metering and Remote Meter Reading
In the face of the current complex situation, safety considerations are paramount in the use of electrical energy metering and remote meter reading. This is specifically manifested in: setting up safety systems during the automated meter reading process, ensuring the safety of systems and devices under the operation of data centers, enhancing the efficiency of data information transmission while boosting data security and reliability, and avoiding interference from external factors. Potential safety hazards in the practical application of electrical energy metering and remote meter reading may include: inherent defects in the network, vulnerability to hacker and virus attacks, irregular operational processes, and insufficient system interference resistance. Therefore, it is crucial to flexibly apply different technologies such as identity verification, network security, secure core technology, and firewall technology, and to strengthen the optimization of network topology to ensure the safety of electrical energy metering and remote meter reading, and reduce the probability of various accidents. At the same time, attention must be given to continuously improving the service level of the automatic meter reading system for electrical energy metering, to the fullest extent meeting the actual needs of users.
Ankorui Building Energy Consumption Analysis System
4.1 Overview
The Acrel-5000web Building Energy Consumption Analysis System is a user-end energy management analysis platform. It builds upon electrical energy management systems by adding centralized collection and analysis of water, gas, coal, oil, and thermal (cooling) energy. By segmenting and statistically analyzing all energy consumption at the user end, it presents various energy usage and consumption patterns to management or decision-makers through intuitive data and charts, facilitating the identification of high-energy consumption points or inefficient habits. This effectively saves energy and provides accurate data support for users' further energy-saving renovations or equipment upgrades. Users can implement energy calculations according to national regulations, analyze the current situation, identify issues, explore energy-saving potential, propose practical measures, and submit energy calculation reports to departments responsible for energy conservation at or above the county level.
4.2 Application Sites
System design, construction, and operational maintenance for energy consumption monitoring and management applicable to various industries such as public buildings, corporate groups, industrial parks, large-scale properties, schools, hospitals, and enterprises.
4.3 System Features
4.3.1 System Overview
Platform operational status, current month energy consumption calculations, map navigation, hourly and monthly energy consumption curves, and a rolling display of daily and monthly energy consumption year-on-year comparisons.
4.3.2 Energy Consumption Overview
The company compares energy consumption across buildings, departments, regions, branches, and categories. It supports hourly trends for the current day, daily trends for the current month, energy consumption statistics for different time periods, and year-on-year comparisons of total energy consumption.
3.4.3 Energy Consumption Statistics
The company has implemented a daily, monthly, and annual reporting system for energy consumption statistics across various structures such as buildings, regions, sub-items, and branches. The system supports exporting report data to Excel and allows for the generation of bar charts based on selected building data.
4.3.4 Reimbursement Rate Statistics
The report on the composite tariff rate provides daily, monthly, and annual statistics on the peak, off-peak, flat, and valley electricity consumption and cost for different branches under a single building. It supports data export to Excel.
4.3.5 Year-on-Year Analysis
Our company conducts a year-on-year energy consumption analysis for buildings, sub-items, regions, and branch lines by combining graphical representations with reports, on a daily, monthly, and annual basis.
4.3.6 Energy Flow Diagram
The Energy Flow Map showcases the energy flow from source to end within a single building over a specific period, allowing for viewing both original values and normalized values.
3.4.7 Nighttime Energy Consumption Analysis
The night-time energy consumption is statistically compared in terms of tables, curves, and pie charts, categorizing the selected branch energy usage during working hours and off-hours, with support for exporting reports.
4.3.8 Equipment Management
Equipment management includes features such as equipment types, equipment inventory, maintenance records, etc. It assists users in managing equipment rationally, ensuring smooth operation.
3.9.4 User Report
Users report automatically calculates the monthly usage trends for selected buildings, comparing year-on-year and month-on-month changes, and provides simple energy consumption analysis results. It offers a separate analysis for electricity consumption with tiered rates, and the report is editable.
5. Conclusion
In summary, effective analysis of electricity metering and remote meter reading applications, enhancing their practical application effects, is crucial for the smooth implementation and completion of power production plans. Therefore, in the future development of power enterprises, sufficient attention should be given to electricity metering and remote meter reading, continuous improvements should be made to the metering devices, their service functions should be optimized, and the efficiency of meter reading operations should be increased, laying a solid foundation for the long-term and stable development of power enterprises.
Reference
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Diao, Zhi-ping. Analysis of a Remote Meter Reading System Based on Electric Power Metering [J]. Science and Technology Entrepreneur, 2012(21): 109-110.
Zongna, Z., & Li, F. (2014). A Brief Discussion on the Application and Improvement Measures of Remote Meter Reading Systems for Electric Energy Measurement. Science and Technology Innovation, (16), 164.
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