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vexg/ID Access Card/Custom Shape Access Card/Waterproof Button ID Card/Fudan Chip Residential Card

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 ¥1.20 ¥1.20 ¥1.80 
 
 ¥1.20 ¥1.68 ¥1.20 
 
 

 

 

 

颜色:黄色、灰色

芯片: TK4100

尺寸:43.7x30.5x5.3mm

ID卡全称身份识别卡(Identification Card),是一种不可写入的感应卡,含固定的编号,

主要有台湾SYRIS的EM格式、美国HID、TI、MOTOROLA等各类ID卡。

ID卡的工作原理:

系统由卡、读卡器和后台控制器组成。

工作过程如下:

1、读卡器将载波信号经天线向外发送,载波频率为125KHZ(THRC12)

2、ID卡进入读卡器的工作区域后,由卡中电感线圈和电容组成的谐振回路接收读卡器发射的载波信号,卡中芯片的射频接口模块由此信号产生出电源电压、复位信号及系统时钟,使芯片“激活”;

3、芯片读取控制模块将存储器中的数据经调相编码后调制在载波上,经卡内天线回送给读卡器;

4、读卡器对接收到的卡回送信号进行解调、解码后送至后台计算机;

5、后台计算机根据卡号的合法性,针对不同应用做出相应的处理和控制。

ID卡的特点:

载波频率为125KHz(THRC12)或13.56MHz(THRC13);

卡向读卡器传送数据的调制方式为加载调幅;

卡内数据编码采用抗干扰能力强的BPSK相移键控方式;卡向读卡器数据传送速率为3.9kbps(THRC12)或6.62kbps(THRC13);

数据存储采用EEPROM,数据保存时间超过10年;

数据存储容量共64位,包括制造商、发行商和用户代码;

卡号在封卡前写入后不可再更改,绝对确保卡号的安全性;

ID卡的应用:

ID卡在弱电系统中一般作为门禁或停车场系统的使用者身份识别,由于其无须内置电源,使用时无接触且寿命长,因此在弱电系统中有广泛的应用。ID卡的

出现基本上淘汰了早期的磁卡或接触式IC卡。但由于ID卡不可写入用户数据,其记录内容仅限卡号只可由芯片厂一次性写入,开发商只可读出卡号加以利

用,无法根据系统的实际需要制订新的号码管理制度。同时由于ID卡卡内无内容,故其卡片持有者的权限、系统功能操作要完全依赖于计算机网络平台数据

库的支持。另外,现在行业内的基本共识是ID卡不适合做成一卡通,也不合适做消费系统。ID卡不能做消费的最大原因是“信用”问题。因ID卡无密钥安全

认证机制,且不能写卡,所以消费数据和金额只能全部存在电脑的数据库内,而电脑是靠人员来管理的,从道理上及机制上完全存在作弊空间,另外,万一

因电脑问题而导致消费数据丢失,则将出现灾难性后果。因此,要使消费者认同小区管理的ID卡的权威性(即信用)是不可能的,太多的金钱纠纷只能使ID

卡消费系统无法使用。

颜色:黄色、灰色

芯片: TK4100

尺寸:43.7x30.5x5.3mm

可订做其他芯片、不同颜色的钮扣卡

Parameter information
Brand VEXG
Color Options ID-4 Gray, ID-4 Blue, ID-4 Yellow
Model ID4
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