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The RFID power asset management system is an information system suitable for power asset inventory, tracking, inspection, and maintenance developed for the national power fixed asset management. The system is based on the RFID technology of the Internet of Things, and makes full use of the advantages of RFID technology such as wireless remote identification, batch identification, designated data query, and suitable for indoor and outdoor complex environments to provide technical support for the realization of information management of power assets.
Chapter One Project Background
With the advent of the digital information age in the 21st century, people have attached great importance to the use of network environment and digital technology for information exchange and information management; intelligent management mode has become an important part of enterprise development. Many successful companies use various digital technologies to help companies improve their traditional management models, improve their economic efficiency, and enable them to occupy a more advantageous position in social competition.
Electricity is one of the pillar industries of the national economy, and it is also a very typical asset-intensive industry. Usually, the total assets of a provincial company are tens of billions or even hundreds of billions of yuan, and 99% of them are production and operating assets. Electricity is also a very typical process industry, and all its production and operation activities are carried out around the normal operation of its assets. Therefore, the importance of corporate asset management to the power industry is far greater than that of other discrete manufacturing companies. For example, asset management is an indispensable and important part of ERP in the power industry, but not necessarily in the discrete manufacturing industry.
As energy prices continue to rise and market competition is becoming increasingly fierce, power companies are facing increasing pressure on economic benefits. How to reduce costs more effectively, tap market competitiveness from within the enterprise, and increase the input-output rate of assets becomes even more important. Therefore, asset management in the power industry has long ceased to be only at the level of tracking and management of asset inventory, but is fully oriented to the entire asset life process from construction to routine maintenance and retirement. The normal operation of assets can be described as the lifeblood of the power industry. How to reduce the maintenance cost of assets under the premise of ensuring the operation status of assets is an unavoidable issue for power companies to tap internal potential and improve economic benefits.
In the 21st century, the role of information systems in business management is beyond doubt. After decades of practice of enterprise informatization, many experiences and lessons show that enterprise informatization does not only include software, computers, and networks. It also lacks high-quality field data. No matter how powerful and perfect an information system is, it is difficult to perform its application. Some role, and trapped in the embarrassing situation of “heroes are useless.” Therefore, the importance of data collection technology in enterprise informatization is increasingly recognized and valued, and the same is true for enterprise asset management systems.
Chapter 2 Introduction to RFID Technology
2.1 Overview of RFID
As an extension of smart card application technology, RFID technology plays an irreplaceable role in the intelligent management mode of enterprises. Electronic tags (Tag), also known as radio frequency sensors, are generally low-power integrated circuits with antennas, memory and control systems. They can store information that needs to be identified and transmitted. They are used to identify persons and objects to facilitate identification, tracking and recording. tool. RFID radio frequency identification technology can transmit the stored information under the action of external force. The electronic tag has the characteristics of large amount of information storage of smart cards, easy to identify, and information cannot be counterfeited; it also has the characteristics of non-contact reading and writing, fast data reading and writing, and providing multiple encryption methods to make information storage more secure; and the information storage format It is also simpler than IC cards and magnetic stripe cards. The good physical properties of electronic tags also make it possible to use them in various products of any shape. Due to the above advantages of electronic tags, as an information storage carrier, it can play a role in identification, product anti-counterfeiting, and item management.
2.2 RFID working principle
The working principle of RFID technology is: the reader receives and reads the data by receiving the radio waves sent by the tag. The radio frequency system has an active system and a passive system. The most common is the passive radio frequency system. The reader sends the encrypted data carrier signal through the transmitting antenna to form an electromagnetic field around it; after the electronic tag enters the working area of the transmitting antenna, it obtains energy from the electromagnetic field and activates the microchip circuit in the tag. The electromagnetic wave is converted, and then sent to the reader, the reader converts it into relevant data. The control calculator can process these data for management control. In the active radio frequency system, the electronic tag with the battery can only move within the effective range.
2.3 Working frequency and application range of RFID
The working frequencies of the radio frequency identification system mainly include 125KHz, 13.56MHz, 433MHz, 860～960MHz, 2.45GHz, etc. The allowable maximum transmit power level and frequency allocation vary from country to region. Among them, the 125KHz system is mainly used in the fields of animal identification and commodity circulation. The 13.56MHz system is generally used in the fields of public transportation and access control systems. Its identification distance is relatively short, usually from a few centimeters to tens of centimeters. The special antenna is used for maximum identification The distance is about 1.5 meters. In the UHF frequency band, the recognition distance of the system is long, ranging from a few meters to tens of meters. The 433MHz frequency band is mainly used in container tracking management; the 860-960MHz frequency band is mainly used in logistics supply chain, warehouse management, asset security management and other services. The passive system (passive tag) of the 2.45GHz system generally can provide a recognition distance of about a few meters, and the active system (active tag) can also reach a recognition distance of tens of meters.
2.4 Features and advantages of RFID technology
1) Easy and fast to read
2) Fast recognition speed
3) Large data capacity
4) Long service life and wide application range
5) The label data can be changed dynamically
6) Better security
7) Dynamic real-time communication
Chapter 3 Power Industry Asset Management Application Requirements and Solutions
3.1 Overview of requirements
In power equipment asset management, applications that require automatic identification technology mainly include: fixed asset management, asset life cycle tracking, and equipment inspection and maintenance. Among them: the introduction of RFID wireless radio frequency system in the management of fixed assets, the use of handheld terminals, preferably handheld terminals that support wireless data communication, not only can greatly improve work efficiency, save labor costs, but also avoid all unavoidable items in manual inventory. This kind of error allows companies to more accurately grasp the inventory and distribution of fixed assets. This is especially important today when the state is paying more and more attention to the supervision of state-owned assets, and the operation of corporate capital is becoming more frequent.
3.2. Fixed asset management
The fixed asset management system is divided into several sub-systems for different processes:
Daily asset management
Fixed asset inventory
Asset in and out management
Asset maintenance management
Depreciation report management
3.3 Asset life cycle tracking management
3.4 Equipment inspection and maintenance
Equipment inspection and maintenance belong to the maintenance and management of equipment status, which is different from fixed asset inventory and full life cycle tracking management of assets, but because it involves changes in asset status, it is closely related to the full life cycle tracking. Equipment inspection and maintenance are designed to check the operating status of the equipment, discover hidden dangers in time and deal with them in advance, so as to avoid hidden dangers from developing into failures and causing greater losses. After the inspection personnel discover the hidden danger of the equipment, they need to report the relevant situation in a timely, accurate, clear and complete manner. The relevant departments will organize and arrange maintenance personnel to go to repair according to the information provided in the report to eliminate the hidden danger.
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