Your phone, in other words, replaces all of those credit, loyalty and gift cards, making payment and rewards redemption much quicker and more convenient. NFC's not done yet. With its P2P mode, you can easily share information and pair all sorts of devices.
Let's assume that on your smartphone you have a whole collection of digital Black Friday coupons for a local superstore. You can share those discounts with your friend just by tapping her phone with yours. And while you're waiting for the doors to open at midnight, you can stave off boredom by playing online games.
Here's where NFC's pairing ability comes in handy. Instead of gaming with strangers around the world, you can tap your friend's phone and she can join the fray without any sort of complicated setup procedure. That simple pairing function will work with far more than smartphones. You'll tap a notebook against a router to create instant, secure WiFi connections using zero passwords -- or touch a camera to an inkjet printer to start printing a photo.
Your doctor will affix an NFC health monitoring tag to your skin. That tag will send streams of data on your body's temperature, sugar levels and much more right to your smartphone, which then relays that data to your nurse. RFID knows its role. It's mainly a critical tracking and inventory control technology. This unique feature allows NFC devices to communicate peer-to-peer. At a minimum, an RFID system comprises a tag , a reader , and an antenna.
The reader sends an interrogating signal to the tag via the antenna, and the tag responds with its unique information. Active RFID tags contain their own power source giving them the ability to broadcast with a read range of up to meters.
Their long read range makes active RFID tags ideal for many industries where asset location and other improvements in logistics are important. So, in other words, NFC technology builds upon the existing high-frequency RFID and is often used in proximity access control solutions.
NFC technology utilizes only an alternating magnetic field, meaning that no power is emitted in the form of radio waves. This prevents any interference from occurring between similar devices or any radio communications operating at the same frequency.
The system based on NFC technology is usually comprised of an initiator a reader and a target tag, card, sticker or a key fob. NFC tags contain data and tend to be read-only. These tags can securely hold personal data, with memory ranging between 96 and 8, bytes.
When initiator and target are in an active mode, they can both send and receive data by using an alternate signal transmission. In this case, both devices have a power supply, meaning that the initiator doesn't have to send power to the target for the latter to perform its' task. All active NFC devices can work in one or more of the following operating modes:. That's why NFC is often used for secure communications, especially for access controls or in the consumer sector for contactless payment.
NFC - What is the difference? RFID vs. RFID is best suited for asset tracking and location in logistic functions. Learn more about Data Capture.
0コメント