RFID FAQ

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General
what is RFID?

Radio frequency identification, or RFID, is a generic term for technologies that use radio waves to automatically identify people or objects. There are several methods of identification, but the most common is to store a serial number that identifies a person or object, and perhaps other information, on a microchip that is attached to an antenna (the chip and the antenna together are called an RFID transponder or an RFID inlay). The antenna enables the chip to transmit the identification information to a reader. The reader converts the radio waves reflected back from the RFID tag into digital information that can then be passed on to computers that can make use of it.


How RFID System works?

An RFID system may consist of several components including tags, tag readers, edge servers, middleware, and application software.

The purpose of an RFID system is to enable data to be transmitted by a mobile device, called a tag, which is read by an RFID reader and processed according to the needs of a particular application. The data transmitted by the tag may provide identification or location information, or specifics about the product tagged, such as price, color, date of purchase, etc.

In a typical RFID system, individual objects are equipped with a small, inexpensive tag. The tag contains a transponder with a digital memory chip that is given a unique electronic product code . The interrogator, an antenna packaged with a transceiver and decoder, emits a signal activating the RFID tag so it can read and write data to it. When an RFID tag passes through the electromagnetic zone, it detects the reader's activation signal. The reader decodes the data encoded in the tag's microchips and the data is passed to the host computer. The application software on the host processes the data, often employing Physical Markup Language (PML).


The problem we have now is that the application we have developed works perfectly when we run the project under Visual Studio, but when we compile it and run the .EXE, it gives the following error:

The Message feed back “no radio attached” means your project did not catch the any RFID reader module.
Please check these issues:
1. Path of your .exe file, make sure your .exe file and these .dll files (cpl.dll, rfid.dll, rfidtx.dll, FavS.dll and FavC.dll) in the same folder.
2. Setting of the file “RFIDcomm.cfg”, make sure your COM port number is the same as the content of the file “Port=?”


Is there a development kit available?

Please be advised that our SDK is for free once you purchase our product.