Discussion on the solution of enterprise energy mo

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Talking about the solution of enterprise energy monitoring and management system

1 overview

in China's energy consumption, industry is the major energy consumer, and the energy consumption accounts for about 70% of the total national energy consumption. The proposal of the CPC Central Committee on formulating the 11th Five Year Plan for national economic and social development puts forward that the energy consumption per unit of GDP at the end of the 11th Five Year Plan period is about 20% lower than that at the end of the 10th Five Year Plan period. This indicator is one of the most important binding indicators in the objectives of the 11th Five Year Plan and also the goal of energy conservation during the 11th Five Year Plan period. Therefore, strengthening enterprise energy measurement management, carrying out enterprise energy conservation and consumption reduction actions, and improving energy utilization are the most effective ways to reduce resource consumption and protect the environment. It is also an important part of China's new industrialization path, which is of great significance for improving enterprise economic benefits, alleviating energy and environmental constraints faced by social and economic development, and achieving the goals of the eleventh five year plan

in order to enable enterprises to better complete resource allocation, production organization, Department settlement and cost accounting, it is necessary to establish an effective automatic energy data acquisition system to monitor the energy supply, so that enterprises can grasp the energy status in real time, lay a solid data foundation for the realization of automatic energy regulation and control, and facilitate the measurement and cost accounting of enterprises

energy data has the characteristics of standardization, specialization, scientization and strong timeliness, so it is difficult to collect. At the same time, considering the importance of energy data for enterprise decision-making and the dangerous characteristics of energy itself, it is necessary to put forward higher requirements for the energy data acquisition system established by enterprises. Therefore, the enterprise energy management system (hereinafter referred to as EMS) must meet the needs of strong professionalism, good real-time, remote data exchange and strong availability

2 current situation and demand of enterprise energy management

the enterprise recognizes the importance of data for enterprise management, adopts various instruments and meters to collect energy data, and sends special personnel to maintain and copy the instruments, meters and collected data on site, and makes statistics and reports level by level, and establishes a database to manage the data. Such a disadvantage is the low efficiency of manual operation, which can not meet the needs of a wide range of data collection. Therefore, the establishment of enterprise energy management system is of great significance to deepen enterprise management and maintain the normal operation of enterprises

for an enterprise, the installation scope of the enterprise energy management system includes data collection of the total plant water supply (whether underground water or urban pipe water supply), real-time data collection of water supply pressure, water temperature, etc., data collection of water supply consumption of each branch plant, data collection of other relevant independent accounting departments, etc. Product output collection of each branch. Power plant real-time supply data acquisition, real-time data acquisition or registration of various energy products produced by power plant. Data collection or recording of the total plant supply of other kinds of energy and the supply data of each independent accounting unit

because enterprise energy management is a complex and huge computer information system. This needs the powerful support of the perfect intranet system inside the enterprise. In terms of the current situation of each enterprise, its internal Intranet has been basically established, and various application systems established in the internal local area system of the enterprise are also gradually improving. The enterprise energy management system is an application system established in the internal local area system of the enterprise, which needs to be closely combined with other application systems of the enterprise (such as the internal office system of the enterprise) to coordinate and complete various tasks

because the energy management system involves a wide range, many quantities and categories, the communication protocols used are inconsistent, the metering equipment used by various enterprises are also very different, and the different energy systems of various enterprises and branch workshops are also different. Therefore, we adopt the method of unified management interface and separate collection. We will introduce it in detail in the following system structure

3 comprehensive description of enterprise energy management system solution

3.1 introduction to scheme design

the enterprise energy management system developed by ankerui company. The on-site data collection is based on the network power instrument independently developed by ankerui. In terms of information transmission, the information exchange and sorting service system is implemented based on acrel-2000 system, so that the key data obtained by each application program of the enterprise is the key data subscribed by each application program, It can greatly improve the efficiency of data processing

there are three kinds of energy data: energy supply status data, energy supply whole point data, and energy supply accumulation data. Each data has a different application range. The energy supply status data is the basis of all data. The other two kinds of data are obtained through instruments, meters, manual input or calculation programs, and are the key data required by other application systems. Therefore, the energy data acquisition system of ankerui can not only capture the energy supply status data, but also sort out the key data required by other applications, and actively send it to each application, so as to meet the office and processing needs of each department, and meet the needs of settlement and decision-making while monitoring

3.2 overall design principles

in view of the current level of energy data acquisition systems at home and abroad, we propose the following design principles for enterprise energy management systems:

one year after operation

◆ adopt advanced, mature and practical technology

at present, the development of energy data acquisition system technology has been relatively mature. What we plan now is a system facing the 21st century, which should stand the test of the times. Therefore, we should pursue advanced technology, simple and practical use, and pay attention to mature and reliable technology without any experimental application

◆ the system should have centralized and unified management ability, which greatly facilitates system management.

according to the actual management system, public safety management is centralized and unified. Therefore, our system has a multi-level centralized and unified management center, and implements scientific and reasonable management, so that the monitoring technology can play the highest role

◆ the system should be open, expandable, compatible and flexible

with security as the core, the system is open and can be organically connected with other systems and integrated into a whole. The size of the system range varies greatly, which requires the system to be suitable for a variety of scales and have strong scalability; It can adapt to the expansion requirements of the system at any time. The system has strong compatibility and flexibility, and can adapt to the upgrading of products. It is an important idea of system design

◆ the design of the system and the selection of products should be standardized. The design of the system and the selection of products should be standardized, and standardization is necessary

◆ the system must have safety, reliability and fault tolerance

the safety and reliability of system equipment is a very important indicator. In order to prevent the system from working abnormally due to the misoperation of operators, the system is required to have strong fault tolerance and self-test function

◆ reasonable performance price ratio when designing the system, we should proceed from reality and pursue the highest performance at a limited price

3.3 composition of system modules

system network topology diagram

the above figure is the network topology diagram of acrel-2000 power monitoring system. The machine adopts the electro-hydraulic servo industry. EMS mainly consists of the following subsystems that can operate independently:

data browsing and entry system: the main functions of the system are the following two parts: first, publishing real-time energy data to the web within the enterprise, and generating various reports, curves, charts, etc. Provide scientific basis for all relevant departments and enterprise decision-makers. 2、 Energy data is entered manually. For some monitoring points without automatic collection, the meter reader of the instrument needs to input the instrument data from the system at a fixed time. This function is also applicable to enterprises with insufficient funds, and there are few automatic monitoring points. For other manual monitoring points that require a lot of capital investment, manual entry can be used, so that while reducing capital investment, It can maximize the information management of various energy data. At the same time, when enterprises need it, they can publish real-time energy data through the enterprise computer security management network (Internet) for authorized enterprise personnel to browse remotely. In order to ensure data security, generally speaking, energy data cannot be entered and modified by outsiders

data acquisition system: it mainly completes the function of real-time acquisition and reporting of energy data. The system is the main source of enterprise energy management data. All kinds of important status data required for enterprise energy management must be completed by the reliable data acquisition terminal indtu-051g/10 of acre. The acquisition system is mainly composed of central receiving server and lower acquisition terminal. Indtu is connected with rs232/485 and metering instruments to obtain real-time data, and then send the real-time data to the central data receiving server through mobile GPRS network or in the factory. Because indtu adopts embedded operating system, it has strong computing ability and openness. In addition, the built-in automatic information collection component can actively report information to the network according to information changes, replacing the traditional database rotation, ensuring the real-time transmission of data, greatly reducing the network data traffic and the burden of the central server, and ensuring the stability and reliability of the central server. At the same time, indtu has built-in optional storage module, which can save data for a certain time according to users' needs, so as to ensure that data will not be lost in case of communication link failure. Ensure the integrity and continuity of data to the greatest extent

data middleware: the system mainly obtains the required data from the existing MIS system or monitoring system of other enterprises, and imports it into the enterprise energy management system database for use by the energy management system. The data middleware will not affect other existing systems, but read the information required by the energy management system from the existing system of the enterprise, and will not write any information to the system

therefore, the data flow of this system is one-way, which can fully ensure the safety of other existing systems. According to the different systems that need to obtain data, different data middleware needs to be customized and developed. To meet the needs of enterprises. At the same time, different application systems can provide different data acquisition methods, which need to be treated differently and handled separately

application of energy management system: this subsystem is mainly used to provide various applications of enterprise energy management system and share the achievements brought by energy informatization. The system is mainly composed of two parts, application publishing server and energy management client. The application publishing server mainly publishes various data of energy management to other application systems of the enterprise, such as financial management system. Other applications mainly obtain different data according to their subscriptions. The energy management client mainly completes various initialization of energy management, addition and deletion of collection points. Data statistics and accounting of the head office and branches. Data monitoring, alarm, increase or decrease of web publishing data, management and distribution of various personnel permissions at each collection point. Generation of various daily reports. The generation of various data curves, pie charts, histogram and so on

3.4 system features

this system adopts distributed deployment, gives full play to the computing power of each component, and brings the system efficiency and processing speed to

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