双接口智能卡读卡器切换

Question

I am using HID omnikey 5421 smart card reader. reader is dual interface, when i was reading dual interface (contact and contactless) card it's automtically read contactless data in sometime, contact data in sometime.but i want to read contact card data first.after reading contact card details remove dual interface card then i put another contactless card, to read data from contactless (this card contactless only). this scenario how to handle. i was checked options in HID omnikey reader.

please give suggestion to me.

Answer 1

Here's a way of selecting a reader programmatically. It is from a code example in Java of how to use the PC/SC drivers - worth reading if you are getting started with smart cards: http://ludovicrousseau.blogspot.com.es/2010/06/pcsc-sample-in-java.html

As you can see in this code block, it reads the list of terminals - then selects the first one. In your reader, you will probably get two: contact and contactless. Just get the one you want to use and you are done!

   // Display the list of terminals
   TerminalFactory factory = TerminalFactory.getDefault();
   List<CardTerminal> terminals = factory.terminals().list();
   System.out.println("Terminals: " + terminals);

   // Use the first terminal
   CardTerminal terminal = terminals.get(0);

Ludovic Rousseau's site has examples using several more programming languages. As I said, a very good resource!

Answer 2

Where you are experiencing this issue, you need to disable the contactless interface temporarily. You need to download the HID Omnikey Workbench software. http://www.hidglobal.com/sites/hidglobal.com/files/resource_files/omnikey_contactless_developer_guide.pdf