无线电爱好网

 找回密码
 注册

扫一扫,访问微社区

QQ登录

只需一步,快速开始

搜索
查看: 3723|回复: 3

求教,PFID技术与非接触式IC卡

[复制链接]
发表于 2012-2-1 16:06:21 来自手机 | 显示全部楼层 |阅读模式
我是一个学生,想为学校做出一套IC卡,进行身份识别,找高人赐教,该如何做,在做之前要准备什么,读写器的工作原理与IC卡的内部构造怎样,高频是否只为IC卡提供电源,卡的特殊频率与如何解码等,谢谢
发表于 2012-4-6 15:04:47 | 显示全部楼层
哎..我真不知道是该相信你呢
还是该怀疑你呢 ..
还是该怀疑我自己呢












面膜排行榜 www.dzsd.net
发表于 2012-4-9 14:40:05 | 显示全部楼层
众里寻他千百度,蓦然回首在这里!












胶原蛋白排行 http://www.b008.com
发表于 2015-1-7 13:10:48 | 显示全部楼层

Piumino moncler donna Any kind of unskilled most p

any kind of unskilled most people how being good proprietor,Piumino moncler donna
Listen: could not stand up, you will continue to, me. GG bought me a super-diamond ring,piumini moncler uomo outlet, excitement. An elegant escape gesture. But these are not the most distressed me, my greatest fear and Tao children took to the streets if you think and a beautiful long legs walking in the street is a very happy thing, then there are only two possibilities, one you look also high,moncler sito ufficiale, two is that you have not tried it for me two possibilities are not, therefore, go out every time and pottery children both physically and mentally tortured. Imagine if my arm around her shoulder, which made me look like a koala hanging in the trees, or slung on her a canvas bag. Of course, I can go to hug her waist.
Zedong once said that the heart of the imperialist death I die, great man's death 30 years later,Moncler prezzi outlet, these words still echo in my ears sonorous, constantly reminding people, and always guard against all the invading enemy of the United States freely and subversion Korean War was under the leadership of Mao Zedong's People's Liberation Army after the defeat indeed in the world and the people in front of face disgrace really, in order to report the arrows of the enemy, the United States beat China and have been looking for the collapse of China's opportunities, especially In the 1990s, the United States against China conducted a series of military actions, are in the exploratory China's strategic intentions and interior reflect the situation in order to choose the right time, including close cooperation with the thief, a good start in China,moncler uomo, China is now completely defeated and the collapse of the United States stepped up its military encirclement of China reduced the strategic plan, the most obvious manifestation is explicit in the future Korea-US joint military exercises the Yellow Sea. U.S. Aircraft carrier enters the Yellow Sea, the capital will be in the U.S.
相关的主题文章:
您需要登录后才可以回帖 登录 | 注册

本版积分规则

关闭

站长推荐上一条 /1 下一条

QQ|关于本站|小黑屋|Archiver|手机版|无线电爱好网 ( 粤ICP备14010847号 无线电爱好技术交流5 无线电爱好技术交流1无线电爱好技术交流9开关电源讨论群LED照明应用、电源无线电爱好技术交流4无线电爱好技术交流8无线电爱好技术交流10无线电爱好技术交流11

GMT+8, 2017-12-19 04:36 , Processed in 0.452401 second(s), 26 queries .

Powered by Discuz! X3.2 Licensed

© 2001-2013 Comsenz Inc.

快速回复 返回顶部 返回列表