International Core Journal of Engineering 2020-26 | Page 210

III. S YSTEM A PPLICATION B ASED ON H IGH S ECURITY RFID
T ECHNOLOGY
Based on high security RFID, it can connect various
business systems to complete the life cycle management of
power equipment assets, as shown in Fig. 5. The working
principle of the system is that power and data read and write
devices communicate through the RFID interface. They can
carry out information collection, data filtering, coding
analysis, information distribution and other services, so as to
complete corresponding application operations. All kinds of
support systems, such as e-commerce system, material
management system, asset management system, etc., are
connected with platform layers such as RFID service
platform, platform management, business logic processing
through application interfaces, so as to complete the overall
management. Such a system constitutes the life cycle
management system of power equipment assets.
ANT
RECTIFIER
LIMITER
REGULATOR
VDDH
MODULATOR
MTP
VDD
RNG
MAC
DEM
POR
PHY
OSC
SM7
FLAG
Fig. 4. Radio Frequency Identification Electronic Tag Schema
The antenna (ANT) receives RF signals. Rectifier is
responsible for converting RF signal to DC, Regulator is
responsible for stabilizing DC signal above the working
voltage (VDD) required by the later circuit. The
demodulation circuit (Demodulator) uses the envelope
detection principle to demodulate the received RF signal by
ASK. Modulation circuit (Modulator) uses the principle of
backscattering to modulate the RF signal by ASK. Baseband
circuit (Baseband) is responsible for encoding, decoding and
Gen-2 MAC layer implementation.
IV. C ONCLUSION
The special electronic tag designed by high security
RFID chip realizes the unique identification and key
information storage of power equipment. In the aspect of
security, the national security algorithm is adopted to ensure
the security of identity and data. In the aspect of
manufacturing technology, the electronic tag adopts special
material and design to ensure the 10-year working life of
power equipment under the bad working environment. In
terms of information storage, a large capacity RFID tag is
used, and the user storage space can meet the key
information storage needs. The whole life cycle management
system of power equipment assets based on high security
RFID technology has great practical significance for efficient
management of power equipment assets, and will be widely
promoted in Power Grid Corp.
In order to make the baseband circuit work properly,
OSC and POR are needed on the chip to generate clock
signal and reset signal respectively. In the above circuit
modules, all circuits except baseband circuit are collectively
called RF analog front-end circuit, so the tag can be divided
into three parts: antenna, RF analog front-end and baseband
circuit.
The arithmetic unit mainly refers to the SM7 arithmetic
module, which realizes the functions of triple authentication
and stream encryption.
R EFERENCES
[1]
The basic working principle of the tag is: after the label
enters the magnetic field, it receives the radio frequency
signal emitted by the interpreting device, sends out the
product information stored in the chip by the energy
generated by the induced current, or sends a certain
frequency signal by the label. The reader reads the
information and decodes the code, and sends it to the central
information system for data processing. It is necessary to
pass security authentication before data communication.
[2]
[3]
[4]
[5]
188
Chen Shuyong, Song Shufang, Li lanxin, Shen Jie. Summary of
Smart Grid Technology[J]. Power grid technology, 2009,33(8)㸸1-
Yang Shimeng. Design and Implementation of Measurement Asset
Management System Based on RFID[D]. University of Electronic
Science and Technology, 2013.
Zhang Shumin. Design and Implementation of Fixed Assets
Management System Based on RFID[D]. University of Electronic
Science and Technology, 2013.
Chen Huiyu, Liu Ying. Application of Intelligent Warehouse in Asset
Management of Electric Energy Measurement. Innovation and
Application of Science and Technology, 2016,(35):218.
Zhou Xiang, Shao Jin, Pang Zhenjiang. A Multi-Label Group
Reading Performance Analysis Method for Electric Power
Applications[J]. Integrated Circuits in China, [1].2016,(10):85-90.