2016年06月16日
List Of Killer Android Apps For NFC Tags
The ever popular but often under-appreciated RFID tag has been the object of new research and experimented in new applications of many authoritative scientists around the world. When it comes to RFID systems, the only real security threat lies in the RF communication that happens between the tags and readers. Primarily because unlike beacons that simply send a signal with a beacon identifier effectively saying I'm here!”, RFID actually transmits data related to the product (the EPC or the Electronic Product Code). Few common forms of data security threats are rogue/clone tags, unauthorized riders, and side-channel attacks (interception of reader data by an unauthorized device).
That said, all UHF RFID tags operate on a single global standard (Generation 2) that have some built-in security measures including disguised EPC number and kill commands” that allow operators to deactivate tags so they don't send data. Of late, however, RFID has received some criticism for weak encryption, password protection and lack of tag or reader identification.
The cost associated with RFID solutions depends on the kind of solution (the type of tag - low frequency, high frequency or ultra-high frequency tags and type of reader) you are planning on implementing. For example, when it comes to inventory unit level tracking, RFID is without question the cheapest automation solution out there. Passive tags can cost as little as 1¢ and some ultra-high frequency reader systems can process 1,000 tags per second. At the same time, if a business calls for asset tracking at the large object level (e.g. equipment or cargo containers), beacons could be more cost-effective when compared to RFID systems.
Also, while the cost of an Active RFID tag is about at par with a beacon it calls for a more expensive investment on the reader infrastructure side. A single reader may cost up to $1,500 whereas almost all smartphones in the market can act as readers in the case of beacons. The reader would tabulate the QTY's of the items taken and immediately charge your debit or credit account from your bank.
The dependence of an RFID system on a number of components including basic hardware such as tags, readers, reader control and an application software, make it a difficult solution from an accessibility standpoint. RFID solutions cater to different ranges based on the frequency at which they operate (low freq - 10cm, high freq - 10cm to 1m, ultra-high freq - upto 12m, active RFID tags - upto 100m). Accuracy of RFID systems vary depending on the frequency of operation, the kind of tag antenna, reader and reader antenna. A significant advantage to using RFID over bar codes is RFID tagged items do not have to be precisely lined up with the scanner.
That said, all UHF RFID tags operate on a single global standard (Generation 2) that have some built-in security measures including disguised EPC number and kill commands” that allow operators to deactivate tags so they don't send data. Of late, however, RFID has received some criticism for weak encryption, password protection and lack of tag or reader identification.
The cost associated with RFID solutions depends on the kind of solution (the type of tag - low frequency, high frequency or ultra-high frequency tags and type of reader) you are planning on implementing. For example, when it comes to inventory unit level tracking, RFID is without question the cheapest automation solution out there. Passive tags can cost as little as 1¢ and some ultra-high frequency reader systems can process 1,000 tags per second. At the same time, if a business calls for asset tracking at the large object level (e.g. equipment or cargo containers), beacons could be more cost-effective when compared to RFID systems.
Also, while the cost of an Active RFID tag is about at par with a beacon it calls for a more expensive investment on the reader infrastructure side. A single reader may cost up to $1,500 whereas almost all smartphones in the market can act as readers in the case of beacons. The reader would tabulate the QTY's of the items taken and immediately charge your debit or credit account from your bank.
The dependence of an RFID system on a number of components including basic hardware such as tags, readers, reader control and an application software, make it a difficult solution from an accessibility standpoint. RFID solutions cater to different ranges based on the frequency at which they operate (low freq - 10cm, high freq - 10cm to 1m, ultra-high freq - upto 12m, active RFID tags - upto 100m). Accuracy of RFID systems vary depending on the frequency of operation, the kind of tag antenna, reader and reader antenna. A significant advantage to using RFID over bar codes is RFID tagged items do not have to be precisely lined up with the scanner.
Posted by may000 at
16:40
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