The accurate identification of the key objects is essential for the proper functionality of modern automated systems. Nowadays there are many possible methods of identification. The necessary requirement for the identification process is the object marking. There are various methods of marking. The best known structure is the alphanumerical code, barcode or 2D code. All these ways have its typical advantages and disadvantages but in general all of them can not be used without the direct visibility or for identification of higher quantity of objects at once. These are critical features for the security area applications. The only technology that fulfills those necessary features is radiofrequency identification (RFID) that works with RFID tags marked objects.