Biography
Enrollment Date: 2009
Graduation Date：2012
Degree：M.S.
Defense Date：2012.05.24
Advisors：Chun Zhang
Department：Institute of Microelectronics，Tsinghua University
Title of Dissertation/Thesis：Design and Implementation of a RFID Test System
Abstract:
As a wireless automatic identification technology, Radio Frequency Identification (RFID) was received widespread favor for its advantage both at home and abroad. It has been applied in production, tracking, logistics, equipment, transportation, asset management, security and medical. Because there is not a uniform application of standard for RFID, many countries or regions have developed their own standards. The variety and diversity of the RFID standards made an obstacle for the further development and application of RFID. So an open and general-purpose RFID test system is very necessary.
Base on the above background, in this study, a reconfigurable RFID test system based on virtual instrument was designed in combination with the idea of software radio. This article describes the basic knowledge of RFID and Software Defined Radio, and a brief description of the protocol, which was used by this test system.
The system can be divided into two parts of the hardware and software. In order to make the system a good expansibility, the modules were designed as software as far as possible. The hardware part is composed by high-performance modular hardware devices, including PXIe-1075 chassis, PXIe-8133 embedded controller, PXIe-5673transmitter module components and PXIe-5663 receiver module components and so on. Hardware platform ensured real-time response requirements of system, and provided a basis for system extensibility in the physical level.
The design of software followed the guiding ideology of Software Defined Radio and modular design, and strived to make the whole system a very good versatility and scalability. The software part is divided into three levels according to the difference of functions: hardware control layer, physical test layer, as well as protocol test layer. Among them, the hardware control layer realizes the control of the modular instruments, including signal processing on board and hardware trigger acquisition, etc.; physical test layer is responsible for the realization of physical parameters testing, including the various measurement analysis of timing domain and frequency domain; protocol test layer realizes command signal generation, coding, and the decoding of response signal and protocol analysis. In the framework of multi-layer structure, each layer is divided into a series of specific function modules.
A digital modulation method and a structure base one the universal joint amplitude and phase demodulation algorithm was present, and with O-QPSK modulation mode for example.
The LabVIEW software development has the very good human-machine interface and provides a good convenience for the operator.
This system can be used for conformance test on E-tags from physical layer to protocol layer, which is applicable to the tests with different frequency bands or standards, so as to facilitate integrated development and test with multiple protocols as well as secondary development. This system is characterized by short development cycle and low cost.
As a wireless automatic identification technology, Radio Frequency Identification (RFID) was received widespread favor for its advantage both at home and abroad. It has been applied in production, tracking, logistics, equipment, transportation, asset management, security and medical. Because there is not a uniform application of standard for RFID, many countries or regions have developed their own standards. The variety and diversity of the RFID standards made an obstacle for the further development and application of RFID. So an open and general-purpose RFID test system is very necessary.
Base on the above background, in this study, a reconfigurable RFID test system based on virtual instrument was designed in combination with the idea of software radio. This article describes the basic knowledge of RFID and Software Defined Radio, and a brief description of the protocol, which was used by this test system.
The system can be divided into two parts of the hardware and software. In order to make the system a good expansibility, the modules were designed as software as far as possible. The hardware part is composed by high-performance modular hardware devices, including PXIe-1075 chassis, PXIe-8133 embedded controller, PXIe-5673transmitter module components and PXIe-5663 receiver module components and so on. Hardware platform ensured real-time response requirements of system, and provided a basis for system extensibility in the physical level.
The design of software followed the guiding ideology of Software Defined Radio and modular design, and strived to make the whole system a very good versatility and scalability. The software part is divided into three levels according to the difference of functions: hardware control layer, physical test layer, as well as protocol test layer. Among them, the hardware control layer realizes the control of the modular instruments, including signal processing on board and hardware trigger acquisition, etc.; physical test layer is responsible for the realization of physical parameters testing, including the various measurement analysis of timing domain and frequency domain; protocol test layer realizes command signal generation, coding, and the decoding of response signal and protocol analysis. In the framework of multi-layer structure, each layer is divided into a series of specific function modules.
A digital modulation method and a structure base one the universal joint amplitude and phase demodulation algorithm was present, and with O-QPSK modulation mode for example.
The LabVIEW software development has the very good human-machine interface and provides a good convenience for the operator.
This system can be used for conformance test on E-tags from physical layer to protocol layer, which is applicable to the tests with different frequency bands or standards, so as to facilitate integrated development and test with multiple protocols as well as secondary development. This system is characterized by short development cycle and low cost.