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1. Project background
The Meter Measurement Center of the Power Supply Bureau is the meter measurement and testing organization in the power industry. It is responsible for the management function of the entire life cycle of the meter assets in its jurisdiction, and is responsible for the full life cycle management of the meter measurement equipment, including procurement, warehousing, calibration, distribution, installation, Run testing, post-installation verification and other links. Take a city-level power supply company as an example. It is responsible for the power supply work in the area. With the rapid development of industrial and agricultural production in the area and the increasing population, the total number of single-phase and three-phase electric energy meters currently in operation in the area has exceeded 50. 10,000, and it is increasing at a rate of nearly 50,000 new households each year. The annual turnover of electric energy meters and transformers is about 150,000 and 15,000 respectively. Warehouse management puts forward high demands.
In traditional power meter asset management, turnover boxes and original packaging of power assets are commonly used for storage. They are stacked on the warehouse floor and on shelves. This not only covers a large area, but also has low storage efficiency, and is inconvenient to access and labor-intensive; at the same time , The level of informatization is low, and it is impossible to understand and grasp the relevant information of asset management in a timely manner. It can be said that the original management model reflects the limitations of traditional management thinking. The meter asset management of the meter measurement center exhibits the following characteristics:
1. There are many types and large quantities of electric meters;
2. Higher value and large amount of funds;
3. Wide distribution, diverse asset ownership;
4. Full life cycle management, complicated process
It can be said that modernization, automation, intelligence, and informatization are the actual needs of the development of electric energy metering centers, as well as the general trend. The logistics system planning of the metering center has become inevitable.
2. Project construction goals
In order to strengthen the management of electricity meters, improve the restriction and supervision mechanism, prevent and defuse financial risks, prevent fraud and fraud, the system realizes the electronic business data of the whole life intercontinental management of electricity meter assets, automatic business data collection, and eliminates the influence of human factors. Such phenomena as the forgery of certificates to ensure the safety and accuracy of the meter.
Three, based onRFIDDesign of Smart Meter Management System
In the smart meter management system, it mainly includes the meter storage management system and the meter intelligent inspection system. According to the specific needs of users, it can be subdivided into various links.
The overall architecture of the smart meter information management system is shown in the figure below:
In the smart meter information management system, it is mainly divided into three parts: smart meter information coding/collection, smart meter storage management, and smart meter inspection/calibration:
Smart meter information coding/collection:
The information coding/collection of the smart meter is mainly completed before the factory leaves the factory or before the meter enters the warehouse of the Bureau of Metrology.In the production process of the electric meter, the RFID printer is used to print outelectronic label, And bind it to the meter one by one; enter the meter’s attribute information (name, model, quality, manufacturer, production date, factory calibration information, expiration date, etc.) through a fixed reader or handheld device before leaving the factory To the RFID electronic tag, and enter the back-end database as the original information.
Smart meter storage management:
A fixed reader/writer is used to manage the entry and exit of the smart meter in and out of the Metrology Bureau’s warehouse. The basic operation is: when the meter is transported, the radio frequency coverage area equipped with a fixed reader/writer is used to cover the area. Electronic label information on the package box. The fixed reader/writer uploads data to the PC of the warehouse workstation through the COM port/Ethernet port, etc. The terminal PC completes the data interaction with the background database through the network, and the terminal PC can complete various service requests at the same time.
When calibrating in the Metrology Bureau, the information of the meter calibration can be entered into the meter through the handheld or fixed readerRFIDIn the electronic tag, the verification information is uploaded to the back-end server through the network synchronization, and it is available for follow-up inquiry and tracking.
Smart meter inspection/calibration:
Use the handheld to perform inspection/calibration of the installed meter. The basic operation is: scan the mounted meter with the handheldelectronic label, And enter the inspection/verification information into the RFID electronic tag of the meter, and perform data interaction with the background database through wireless (wifi wireless communication or GPRS data communication), and complete the corresponding data service request.
(Shenzhen Xianshi Technology Co., Ltd. is a national high-tech enterprise specializing in the research and development, production, sales and solutions of radio frequency identification (RFID) products for the Internet of Things. It is one of the earliest companies engaged in RFID research in China. Leading enterprise in the networked radio frequency identification (RFID) industry. The company has repeatedly undertaken major national-level scientific research projects such as the “863 Program’s UHF Reader Product Development and Industrialization”. The 15th National Science and Technology Plan Excellent Executive Team Award. The products mainly cover RFID reading and writing equipment and antennas, electronic tags, professional integrated circuit chips and RFID software solutions, etc. The products have successively obtained FCC certification in the United States, CE/ETSI certification in Europe, China Non-Administrative Commission CMII certification and Japan TELEC compulsory certification.)
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