The Second Generation Id Card Reader Devices And Related Technologies

The Resident ID Card is the legal certificate of country and the legal carrier of citizen identification number. It has the broad application in social management and social life. For adapting to the modernization and informatization construction of the nation, the second-generation resident ID card changing project starts completely in 2005. The second-generation resident ID card changing work will have been made an appointment with countrywide 1 billion ID card to accomplishing the whole nation basically, above 16 first anniversary by the end of 2008 .In this period , it is of important and practical significance to study the Second-Generation Resident ID Card reading equipments and the related technique.Based on the background of the Second-Generation Resident ID card project ,the Second-Generation Resident ID Card characteristics and the basic structure of reading equipments are explained chiefly in the first part of this paper. Then, the whole technical need of the equipments is expatiated,based on the paper's introduction to read&write principle and related standard of RFID card,the people may understand the development process of he Second-Generation Resident ID Card completely and quickly. The way to implement the hardware and implement the software of every function module is discussed in detail in the detailed design part. The hardware part introduced the systematic realization, explained each part of function, element choice and the hardware realization. The point includes:(1) Hardware design project: Hardware circuit diagram and every function part;(2) Control chip choice and application;(3) Reading card chip choice and application;(4) Antenna design(5) Outer-ring circuital design: the power circuit, buzzer phone drive circuit,button and guiding lights circuit. The software part gives out total flow chart in procedure and each function part of sons flow charts. The point includes:(1) Exploitation environment building-up: STC12C5412ADregister declaration document;(2) EM4094 module control section, SPI main line introduction;(3) Buttons scan procedure;(4) SAM module communication procedure: I~2C interface brief introduction and I~2C functional element program;Then, it has given concrete system testing and the profession problems for resolving ,and two case applying concretely.Finally,all the work are summarized and a research and application prospect of the subject in future is promised.