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RFID is an acronym for Radio-Frequency Identification. This is a technology that uses radio waves to transfer data. For it to work, you must have a complete RFID system consisting of: - An RFID tag/ label - An RFID reader/ interrogator - RFID Antenna The label contains encoded information that can be captured by the reader. However, the tag must be within an acceptable distance for the reader to capture the information. That distance is called the read range. If the tag is within a good read range, it will detect radio waves produced by the reader. As a result, it will release its information to the reader for analysis. How RFID Technology Works As we’ve already indicated, an RFID system consists of the following: - RFID Reader - RFID Tag The two components work in tandem. As such, you must always ensure that each of them is in excellent shape if you want to get the best results from your RFID system. All of its applications are centered on identification (the ability to exchange and authenticate data electronically). The RFID reader produces radio waves, thus creating an electromagnetic field. If a tag approaches it, itwill receive the waves and release information saved on the tag. A Brief History of RFID Now that you understand RFID technology’s primary working rationale, you could be wondering how it came into existence. Who was the first person to use the technology, and for what purpose? Well, RFID technology is relatively old. It dates back to World War II. During this period, the British, Japanese, American, and German armies were all using radar to identify enemies’ planes approaching their territories. However, there was a challenge since nobody could differentiate their planes from those of enemies. It was not until the Germans realized that if pilots rolled their planes when approaching the radar, they would send different signals. These unique signals would mean that the aircraft was under a German pilot. This technique became the first passive RFID system. The British also made an Active Identify Friend/Foe (AIF) system – this became the first active RFID system. The soldiers fixed a transmitter on the planes. This chip/ transmitter would send signals back to the radar identifying the aircraft as either friendly or dangerous. To date, RFID uses the same concepts as used by Germans and British. This is how: - Passive RFID (Like the German’s Approach at the War). A tag sends a signal to a transponder/ RFID reader, reflecting the signal to pass information. - Active RFID (As used by the British). A tag sends a signal to the transponder, and it broadcasts it, thus exchanging data. However, the first RFID technology patent was achieved by Mario W. Cardullo on January 23, 1973. An In-Depth Analysis of RFID Technology To help you understand the nitty-gritty of RFID technology, we will discuss its major components in detail. RFID TAG What is an RFID Tag? Well, an RFID tag is one of the most critical components of an RFID system. The tag stores information about a specific individual or asset. For example, A tag can store your name, employment number, fingerprints, and any other data useful for identification. Additionally, a tag can store data regarding an asset’s location, the last day of service, and any additional information that would be useful in asset tracking and inventory management. A tag consist of two main elements, including: - An Antenna. This is a section that receives and transmits signals. When the tag moves within the RFID reader’s read range, the antenna will detect the signals and send back the data. - An Integrated Circuit (IC)/ RFID Chip. This is the part of the tag that stores data. Each IC has four memory banks – User, EPC, TID, and Reserved. The RFID tag can be embedded in different materials, including cards, wristbands, employee badges, and key fobs. Additionally, you should always attach your RFID tag directly to the asset if you want to track/ identify it with ease. Types of Tags There are three main types of RFID tags. They include: - Active. These are potent tags with a transmitter and a battery. Due to these features, they are usually bulkier than passive ones. However, they offer better read ranges (up to 100 meters) and transmission speeds. - Passive. Unlike the active tags, these lack a battery. As such, they are small (1-10 meters) and offers a limited read range. They are also slow in data transmission. Also, there exists an improved version of the passive tags. The battery-assisted passive tags have a read range of up to 30 meters and relatively faster data transfer rates. How to Select an RFID Tag When selecting your RFID tag, you should always evaluate your needs. If you want to track items far away from the reader, you should acquire an active one since it has a read range of up to 100 meters. Other available options include passive, low frequency, high frequency, and ultra-high frequency tags. Other factors to consider are: - Price. The cost of the tag depends on its construction, and the volume needed. For example, inlay tags cost $0.09 to $1-75, while the hard tags cost between $1 and $20. If you buy in large volumes, you will get a better price. - Environmental Factors. Is the tag resistant to high temperature, water, and chemicals? Always evaluate your environment and only shop for a tag that can work optimally under the prevailing conditions. - Ease of Customization. You should always check whether the tag is read-only (RO) or Read/Write (RW). With RW, you can modify the data regularly. Additionally, you should check the shape and size of your ideal tag. - Method of Attachment. Which attachment technique do you want to use with your RFID tag? Is it adhesives, rivets, or epoxy? Check that the tag you use can be affixed using your ideal methodwithout compromising its functionality. - RFID Readers/ Interrogators RFID Reader An RFID reader is the most crucial part of the RFID system. If this part is defective, then your entire RFID system will not work. These interrogators are available in two different types: - Fixed RFID Readers. Just like the name suggests, the fixed readers stay at one location. It is usually mounted on a wall or any other surface. While the readers can have an integrated antenna, most of them have an external port where you can connect up to 32 antennas. - Mobile RFID Readers. These devices are portable, and you can move with them to different locations. They are ideal for use in stores where you need to scan RFID tags of hidden items. How to Select an RFID Reader When selecting your reader, you should consider the number of antenna it can hold, connectivity (LAN, Bluetooth, Auxiliary port, Wi-Fi, or USB), and other available utilities (HDMI, USB, Camera, or GPS). Additionally, you should check on the affordability. The interrogators cost between $400 and $3000, depending on the features. For example, USB readers are relatively affordable and can cost approximately $400. RFID Antennas RFID antennas are responsible for converting the signals released by an interrogator into waves later picked by RFID tags. To understand the functionality of antennas, you should check the following definitions: - Antenna Gain. The RFID tags’ efficacy to generate enough waves to be detected by tags is called the antenna’s gain. The higher the antenna gain, the more powerful the antenna. - Antenna Polarity. This refers to the ability of the RFID antenna to send radio waves either vertically or horizontally. An antenna can be horizontally linear, vertically linear, or circularly polarized. A circularly polarized one sends waves that continually rotate between the horizontal and the vertical planes. To get the best read ranges, you should ensure that your antenna’s polarity aligns with that of the RFID tag. How to Select an Antenna When selecting an antenna, you should consider the following factors: - Frequency Range. It can be 860 MHz – 960 MHz, 902 MHz -928 MHz, or 865 MHz -868 MHz. - Polarity. Your antenna can be linear or circular. We recommend a linear one that can align with your RFID tag’s polarity. - Read Range. You can either choose Far-Field, or Near-Field read ranges depending on your needs. - Price. The antenna price ranges from $50 to $300. Ensures that you get all the features that you need before considering the price. Additionally, you should ensure that your antenna is of ideal size and has a straightforward mounting rationale. RFID Cables RFID antenna cables connect the RFID reader to the RFID antenna. If the cable is defective, the reader will not power. As such, a dysfunctional cable will lead to a nonfunctional RFID system. When selecting the best RFID cables, you should consider the following factors: - Connector Types. You must always ensure that your connector is compatible with your RFID reader. For example, an RFID reader with an RP-TNC female connector requires a cable with an RP-TNC male connector end. - Length. Always ensure that your cable is long enough to allow the reader’s optimum functionality regardless of the location. However, longer cables may result in excessive loss of power. The solution to this is to ensure that the RFID reader and the antenna are relatively closer so that you can use a shorter cable. - Thickness and Insulation Rating. The thicker the cable, the higher the insulation. You should ensure that your cable is well insulated to avoid power loss. The longer it is, the thicker it should be. Types of RFID Transmissions RFID technology uses electromagnetic waves (EW) to transfer data. There are three main frequency ranges within the EW. They include: - Low Frequency - High Frequency - Ultra-High Frequency Low-Frequency Transmissions This is the lowest frequency transmission in the electromagnetic wave. It offers a relatively narrow read range and low transmission speed. Here are its primary unique features: - Operates within a 30-300 kHz frequency range. However, most of the tags have a fixed range of either 134 kHz or 125 kHz. - They have a read range of approximately 10 cm. A tag that is beyond 10 cm from the reader will not pick the reader’s radio waves. - It cost $0.75 to $5 per tag, and it is widely used for animal tracking, car key-fob, and access control. They are also ideal for use on metallic assets and liquid environment. While low-frequency tags are relatively affordable, they offer limited memory and a low data transmission rate. As such, they are not ideal if you want a fast data transmission rate. High-Frequency Transmissions This transmission category is ideal when your assignment demands a relatively wide read distance. The tags using the high frequency can detect radio waves from a reader 30 cm away. Their primary frequency range is 13.56 MHz, and they cost between $0.2 and $10 per tag. This frequency meets all the global standards making it ideal for personal identification, library management, and access control. Additionally, the high-frequency transmission is applied in the Near Field Communication (NFC) technology. Ultra-High Frequency Despite the availability of super-high and extremely high frequencies, the ultra-high frequency is the highest frequency used in RFID. It works the best in a frequency range of 300-3000 MHz, with primary frequencies of 860-960 MHz and 433 MHz This frequency can be categorized further into: - Active RFID. These tags will use a range of 433 MHz. In rare cases, the active RFID applies an extremely high frequency range of up to 2.45 GHz. It has a read range of up to 100 meters and costs between $25 and $50. Its read range is ideal for tracking vehicles and use in the mining & construction industry. However, it does not work well in metallic and liquid environments. - Passive RFID. The technology uses 860 to 960 MHz and has a read range of up to 25 meters. It costs $0.09-$20 per tag and can be used in the manufacturing, pharmaceuticals, electronic, race timing, and supply chain sectors. They have a high data transmission rate. RFID Standards Understanding RFID standards will help you to choose the best product for your business. It will also offer useful insights into the industry’s regulations. What are RFID Standards? RFID guidelines are the standards that enable one manufacturer to make products compatible with those of a different manufacturer. For example, a tag made by manufacturer A should work well with a reader made by manufacturer B. The RFID guidelines also regulate how communication between the reader and the tag occurs. Importance of RFID Standards Having standard regulations in the RFID industries make the use of RFID products easy. Here are some of the key benefits of RFID standardization: - Development of Complementary Products. All RFID products are made using the same standards and are thus complementary. - Enhanced Competition. RFID standards help to expand the market and increase competition. As a result, the prices of standardized products will be fair. - Boosts the Users Confidence. When you use a standardized product, you’ll be sure that the quality and functionality are top-notch. Who Sets RFID Regulations? Two international organizations regulate the RFID industry. They include: - International Standards Organization (ISO) - Electronics Product Code Global Incorporated (EPCglobal) In 1996, ISO partnered with the International Electrotechnical Commission (IEC) to regulate the use of RFID technology. Later, the ISO/IEC formed the Joint Technical Committee (JTC). The committee was mandated with addressing various RFID issues, including air interface & associated protocols, data content & formatting, and conformance testing. Besides these international regulatory bodies, there are regional and national RFID standardization committees. The major ones are: - ETSI ETSI stands for the European Telecommunications Standards Institute. The body has the mandate to set standards for radio wave communication channels in Europe. - FCC FCC stands for the Federal Communications Commission. The body is in charge of regulating the use of radio waves for communication in the United States. Since Europe and the US were the pioneers in regulating the RFID technology, most countries have adopted their standards. Only a few states, such as Armenia, have developed their independent standard. RFID Applications RFID technology has many applications. It is mainly an essential element of defense systems in many governments globally. Other crucial applications include: - Inventory Management. It doesn’t matter whether you’re managing a supermarket, a manufacturing plant, or a retail business; RFID technology will simplify inventory management! - Asset Tracking. The RFID technology allows you to track your location. This way, you’ll be able to know when they move out of the permitted areas, thus curbing theft. - Personnel Tracking. Human resource managers use RFID to track their personnel. They can get data on attendance, performance, and many other elements without a hassle. - Access Control. If you want to limit the number of people who can access a particular room, you can use RFID technology. All authorized employees will have a tag to help them access the place. - Identification. The RFID technology is used in libraries, government offices, and many other institutions for ease of identification. - Animal Tracking. The low-frequency tags have global standards recognition for use in livestock tracking. They attach well to animals’ tissue, thus making them the best tracking tags. - Anti-Counterfeiting. In the pharmaceutical sector, manufacturers use RFID technology to authenticate their products. Other uses of the RFID technology include supply chain management, race timing, trolling, event attendance tracking, vehicle tracking, and real-time location. You may consider other RFID equipment, including RFID portals, RFID printers, RF power mappers, and GPIO adapters. Essential Things to Know Before Buying an RFID System Investing in the right RFID system can be costly. You may end up spending up to $3500! As such, you should undertake extensive needs research to ensure that the system will benefit your business. - Consider Return on Investment. Is installing an RFID system a necessity for your business? Will it boost sales and enhance efficacy? Before you start the installation process, you should undertake an application and cost feasibility study. Only buy it if you’re convinced that you have a scope big enough to be managed using the technology. This way, you’ll be guaranteed a return on investment. - Cost of Operation. You should evaluate both fixed and recurring expenses. Fixed costs may include buying the RFID reader, RFID tags, and RFID printers. On the other hand, recurrent expenditure may consist of purchasing printer ribbons, RFID inlay, and software renewal. After accessing all your costs, the report should prove that the investment is viable. - Check Your Environment. RFID systems can be affected by your environment. Before you step out to install RFID, ensure that it is compatible with your environment. This way, you’ll avoid buying RFID components that will not function optimally. For example, some RFID tags will not work well on metallic surfaces. As such, you should avoid it if you want to track a metallic asset. - Consider Personnel Requirement. Remember that your RFID system’s efficacy will depend on how well the exchange of data between a tag and a reader is executed. As such, you should engage a professional to test the best location and installation protocols for the device. Additionally, you should get an expert’s advice on the best techniques to ensure that the technology works optimally. Investing in an RFID system can be a game-changer. However, whether you reap the benefits will depend on how well you execute the project. Considering that RFID technology is relatively new for many people, we prepared this comprehensive beginner guide to guide your every step of RFID system implementation.
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NFC बनाम RFID, कुन राम्रो छ? NFC र RFID बीच के भिन्नता छ? यी प्रश्नहरूले हामीलाई सधैं अलमलमा राख्छन्। NFC प्रविधि आरएफआईडी प्रविधिबाट उत्पन्न भएको हो। तर तिनीहरू बीच केही भिन्नताहरू छन्। अब, Asarfid ले तपाईंलाई तीनवटा प्रश्नहरू मार्फत पत्ता लगाउनेछ: NFC प्रविधि के हो? RFID प्रविधि के हो? र तिनीहरू कसरी फरक छन्? ठिक छ, यस लेखले दुई टेक्नोलोजीहरूको बारेमा सबै विवरणहरू हाइलाइट गर्दछ। हामी विभिन्न परिस्थितिहरूमा प्रयोगको लागि आदर्श प्रविधि पनि सिफारिस गर्छौं। RFID बनाम NFC: परिभाषाहरू RFID र NFC टेक्नोलोजीहरूमा कम वा कम समान काम गर्ने तर्क छ। तर, तिनीहरू बीच केही भिन्नताहरू छन्। यहाँ प्रत्येक शब्दावलीको अर्थ के हो: - RFID रेडियो आवृत्ति पहिचान को लागी खडा छ। यसले डेटा खिच्न र व्याख्या गर्न विद्युत चुम्बकीय तरंगहरू प्रयोग गर्दछ। टेक्नोलोजीले काम गर्नको लागि, तपाईंसँग RFID ट्याग र RFID रिडर हुनुपर्छ। - NFC नियर फिल्ड कम्युनिकेसनको संक्षिप्त रूप हो। छोटो दूरीको उच्च आवृत्ति प्रविधिले निकटतामा रहेका यन्त्रहरू/स्मार्टफोनहरूलाई सञ्चार स्थापना गर्न सक्षम बनाउँछ। NFC र RFID दुबै यन्त्रहरू बीच डाटा आदान प्रदान गर्न अनुमति दिन्छ। तिनीहरूको अलिकति भिन्नता पूर्वाधार र सञ्चार दायराहरूमा छ। रेडियो फ्रिक्वेन्सी पहिचान - एक गहन विश्लेषण RFID एक पहिचान प्रविधि हो जुन विभिन्न उद्योगहरूमा प्रयोग गरिन्छ, जसमा औषधि, खेती, अटोमोबाइल, र कृषि समावेश छ। RFID टेक्नोलोजी कसरी काम गर्दछ प्रविधिले प्रयोगकर्ताहरूलाई तिनीहरूको भौतिक सम्पत्तिहरू ट्र्याक गर्न र तिनीहरूको सूचीहरू व्यवस्थापन गर्न सक्षम बनाउँछ। यसले रेडियो तरंगहरू प्रयोग गर्दछ तपाईंको सम्पत्तिहरू टाढाबाट पहिचान गर्न। RFID प्रणालीको लागि तपाईंको सम्पत्तिहरू सफलतापूर्वक ट्र्याक गर्न, यसमा निम्न तत्वहरू हुनुपर्छ: - एक पाठक - एन्टेना - एक ट्याग प्रत्येक ट्यागले त्यो विशिष्ट सम्पत्तिको बारेमा सबै आवश्यक डेटा समावेश गर्दछ। पाठकले एन्टेना मार्फत संकेतहरू पठाउनेछ। संकेतहरू क्याप्चर गरेपछि, ट्यागले तपाईंलाई आफ्नो सम्पत्तिको बारेमा आवश्यक सबै जानकारी प्रदान गरेर प्रतिक्रिया दिनेछ। तपाईले सफ्टवेयरलाई पनि एकीकृत गर्न सक्नुहुन्छ जसले तपाईलाई आफ्नो मोबाइल फोन मार्फत सम्पत्तिको डेटा पहुँच गर्न सक्षम बनाउँछ। यस तरिकाले, तपाइँ मिनेट भित्र तपाइँको सबै सम्पत्ति को स्थिति निगरानी गर्न सक्षम हुनुहुनेछ। बजारमा आरएफआईडी ट्यागका प्रकारहरू बुझ्नले तपाईंलाई सूचित खरीद निर्णय गर्न मद्दत गर्नेछ। जब तपाईं आफ्नो व्यवसायको लागि एउटा खरिद गर्न बाहिर निस्कनुहुन्छ, तपाईंले निम्न मुख्य प्रकारहरू सामना गर्नुहुनेछ: - सक्रिय RFID ट्यागहरू - निष्क्रिय RFID ट्यागहरू सक्रिय ट्यागहरू ब्याट्रीसँग आउँछन् जसले यसलाई १०० मिटरसम्मको रिड दायरासँग सिग्नल प्रसारण गर्ने शक्ति दिन्छ। तिनीहरूको विस्तृत दायरा संकेतहरूले तिनीहरूलाई छरिएका सम्पत्तिहरू भएका उद्योगहरूको लागि उत्कृष्ट ट्र्याकिङ उपकरण बनाउँछ। अर्कोतर्फ, निष्क्रिय ट्यागहरूमा ब्याट्रीको कमी छ। तिनीहरू आरएफआईडी रिडरद्वारा प्रसारित विद्युत चुम्बकीय तरंगहरूमा भर पर्छन्। यस सीमाको कारणले, निष्क्रिय RFID ट्यागहरू नजिकको सम्पर्क (25 मिटरसम्म) ट्र्याकिङका लागि मात्र उपयोगी छन्। त्यहाँ तीन मुख्य प्रकारका निष्क्रिय ट्यागहरू छन्, जसमा: - अल्ट्रा-उच्च आवृत्ति (300 मेगाहर्ट्ज देखि 3 GHz)। यी ट्यागहरूसँग 12 मिटरसम्मको पढ्ने दायरा छ र द्रुत डेटा स्थानान्तरणको घमण्ड गर्दछ। यद्यपि, तिनीहरूको कार्यक्षमता तरल पदार्थ र धातु सामग्रीहरू साथै अन्य विद्युत चुम्बकीय संकेतहरूले प्रतिकूल असर पार्छ। - उच्च आवृत्ति (3 देखि 30 मेगाहर्ट्ज)। यी निष्क्रिय ट्यागहरूको पढ्ने दायरा 30 सेमी देखि 1 मिटर हुन्छ। तिनीहरू इलेक्ट्रोनिक टिकटिङ र अन्य कार्ड भुक्तानी प्लेटफर्महरूमा प्रयोग गरिन्छ। - कम आवृत्ति (30 देखि 300 kHz)। यी ट्यागहरूमा लगभग 10 सेमीको पढ्ने दायरा र अपेक्षाकृत ढिलो डाटा दर छ। यद्यपि, तिनीहरू धातु र जलीय सतहहरूसँग प्रयोग गर्नका लागि उत्तम ट्यागहरू हुन्। तपाईंले आफ्नो आदर्श RFID ट्याग प्राप्त गर्नु अघि, सुनिश्चित गर्नुहोस् कि तपाईंले आफ्नो आवश्यकताहरू परिभाषित गर्नुभयो। तपाईलाई आफ्नो उद्देश्यहरू प्राप्त गर्न मद्दतको लागि पर्याप्त पढ्ने दायराको साथ एउटा मात्र खरिद गर्नुहोस्। थप रूपमा, प्रतिकूल वातावरणीय परिस्थितिहरूमा प्रयोगको लागि ट्यागको उपयुक्तता परीक्षण गर्न उत्तम हुनेछ। उदाहरण को लागी, एक अल्ट्रा उच्च आवृत्ति ट्याग एक धातु सतह संग प्रयोग को लागी आदर्श हुनेछैन। नियर फिल्ड कम्युनिकेसन - एक गहिरो विश्लेषण के तपाईंले कहिल्यै ट्याप-एन्ड-गो-सेवाहरू प्रयोग गर्नुभएको छ र तिनीहरूले वास्तवमा कसरी काम गर्छन् भनेर सोच्नुभएको छ? खैर, Amiibo, Apple Pay, र Android Pay ले जादू प्रयोग गर्दैन! यसको सट्टा, सेवा प्रदायकहरूले नियर फिल्ड कम्युनिकेसन (NFC) भनेर चिनिने वायरलेस डाटा ट्रान्सफर टेक्नोलोजी प्रयोग गर्छन्। त्यसोभए, NFC को लागि काम गर्ने तर्क के हो? तल एक व्यापक गाइड छ: एनएफसी भनेको के हो? NFC छोटो दूरीको ताररहित सञ्चार प्रविधि हो जसले चुम्बकीय क्षेत्र इन्डक्सन प्रयोग गर्दछ। RFID को विपरीत, NFC छोटो-दायरा तरंगहरू मात्र प्रयोग गर्दछ। जस्तै, डेटा स्थानान्तरण हुनको लागि दुई यन्त्रहरू केही सेन्टिमिटर (3-5) को दूरीमा हुनुपर्छ। तपाईं NFC ट्याग र एक संचालित यन्त्र बीच डाटा पनि साझेदारी गर्न सक्नुहुन्छ। ट्यागहरू सरल रिड-ओनली कार्डहरूदेखि जटिल क्रिप्टोग्राफिक हार्डवेयरसम्मको जटिलतामा भिन्न हुन्छन्। NFC ट्यागमा भण्डारण गरिएको जानकारी विभिन्न ढाँचाहरूमा लेख्न सकिन्छ। यद्यपि, धेरै जसो ट्यागहरूले NFC डाटा एक्सचेन्ज ढाँचामा केन्द्रित एन्ड्रोइड फ्रेमवर्क API प्रयोग गर्दछ। NFC ट्यागले डेटा स्थानान्तरणको निम्न मोडहरूलाई समर्थन गर्दछ: - NFC कार्ड इमुलेशन। यो मोडले स्मार्ट कार्डको रूपमा काम गर्न स्मार्टफोन जस्ता NFC यन्त्रलाई सक्षम बनाउँछ। नक्कल गरिएको कार्ड NFC रिडरद्वारा पढ्न सकिन्छ, जसले गर्दा प्रयोगकर्ताहरूले भुक्तानी गर्न सक्छन्। - पाठक/लेखन मोड। यो मोडले NFC द्वारा संचालित यन्त्रलाई स्मार्ट स्टिकर र लेबलहरूमा ट्यागहरू पढ्न र लेख्न अनुमति दिन्छ। - P2P मोड। यो अपरेशन मोडले NFC यन्त्रलाई अर्को NFC साथीसँग डाटा आदान प्रदान गर्न सक्षम बनाउँछ। NFC कसरी काम गर्छ? यदि तपाइँसँग आधुनिक स्मार्टफोन छ भने, यसले सम्भवतः NFC प्रविधिलाई एकीकृत गर्दछ। नवाचारले तपाईंलाई बिना कुनै झन्झट बिना सम्पर्करहित भुक्तानीहरू गर्न अनुमति दिन्छ। यदि तपाइँ सोचिरहनु भएको छ कि यसले कसरी काम गर्दछ, त्यसपछि विस्तृत जवाफहरूको लागि पढ्नुहोस्! NFC प्रविधिले काम गर्नको लागि, दुवै यन्त्रहरू NFC चिपसँग सुसज्जित हुनुपर्छ। पाठकले यस चिपबाट इलेक्ट्रोम्याग्नेटिक इन्डक्शन पत्ता लगाउनेछ। त्यसपछि यसले जानकारी पढ्ने र प्रशोधन गर्नेछ। यहाँ NFC को दुई मुख्य कार्य तर्कहरू छन्: - दुईतर्फी सञ्चार। यस दृष्टिकोणमा, दुई उपकरणहरू एकअर्कालाई पढ्न र लेख्न सक्षम हुनुपर्दछ। जस्तै, यी उपकरणहरूले एक चिपबाट अर्कोमा डाटा स्थानान्तरण गर्न सक्छन्। स्थानान्तरणको सहजताले प्रयोगकर्ताहरूलाई कागजातहरू, सम्पर्कहरू, लिङ्कहरू, र अन्य फाइलहरू साझेदारी गर्न अनुमति दिन्छ। - एकतर्फी सञ्चार। यो काम गर्ने तर्कमा, तपाइँको NFC-संचालित NFC चिप पढ्न/लेख्नुहोस्। उदाहरणका लागि, जब तपाईंले आफ्नो NFC-संचालित कम्युटर कार्ड प्रयोग गर्नुहुन्छ, चिपले कार्डको ब्यालेन्सबाट पैसा प्राप्त गर्नेछ। अन्य फाइल स्थानान्तरण विकल्पहरू जस्तै, ब्लुटुथ, NFC ले कम पावर प्रयोग गर्दछ। यसको पावर-बचत क्षमताले सुनिश्चित गर्दछ कि तपाइँ तपाइँको यन्त्रहरूको लामो ब्याट्री जीवनको आनन्द लिनुहुन्छ। NFC को अन्य अद्वितीय अनुप्रयोगहरू फाइलहरू साझेदारी र भुक्तानीहरू बाहेक, तपाईंले निम्न उद्देश्यहरू प्राप्त गर्न आफ्नो NFC प्रविधि प्रयोग गर्न सक्नुहुन्छ: - तपाईंलाई द्रुत अर्डरहरू गर्न सक्षम बनाउँछ। विन्डोज र एन्ड्रोइड फोनहरूमा प्रयोग हुने NFC ट्यागहरूले तपाईंको अफिसमा परिवर्तन गर्ने तरिकालाई सुधार गरेको छ। उदाहरणका लागि, तपाईले रणनीतिक रूपमा राखिएको NFC ट्यागमा ट्याप गर्न सक्नुहुन्छ प्रकाश बढाउन/कम गर्न, ध्वनिहरू असक्षम गर्न, र Wi-Fi सक्षम गर्न, अन्य कार्यहरू बीच। - एन्ड्रोइड बीम। यो प्रविधिले दुई एन्ड्रोइड उपकरणहरू बीच डाटा आदानप्रदान धेरै सीधा बनाएको छ! - सजिलो उपकरण जोडा। यो प्रविधिले धेरै प्रक्रियाहरूलाई स्वचालित बनाउँछ। उदाहरणका लागि, तपाईंले खाना पकाउने प्रक्रियालाई टाढैबाट निगरानी गर्न आफ्नो फोनसँग NFC-सक्षम गरिएको sous video जोडा गर्न सक्नुहुन्छ। NFC र RFID बीच के भिन्नताहरू छन्? के तिनीहरू पनि फरक छन्? NFC ले RFID प्रविधिको रूपमा उही अवधारणा प्रयोग गर्दछ। यो उच्च-फ्रिक्वेन्सी RFID को एक शाखा हो र लगभग मा सञ्चालन गर्दछ 13.56 MHz यद्यपि, त्यहाँ केही थोरै भिन्नताहरू छन्, जसलाई तल उल्लेख गरिएको छ: - प्रयोगमा भिन्नताहरू प्राथमिक RFID प्रयोगहरू सम्पत्ति ट्र्याकिङ, सूची व्यवस्थापन, पहुँच नियन्त्रण, सहभागी ट्र्याकिङ, र उपकरण ट्र्याकिङ हुन्। यसको विपरित, NFC प्रविधि सुरक्षित डाटा स्थानान्तरणमा केन्द्रित छ। यो प्रविधि कन्ट्याक्टलेस भुक्तानी, डाटा सेयरिङ र स्मार्ट पोस्टरहरूमा लागू हुन्छ। - पूर्वाधार भिन्नताहरू RFID प्रयोग गर्दा, तपाईंसँग RFID ट्याग र रिडर हुनुपर्छ। यसको विपरित, एक NFC यन्त्रले पाठक र ट्याग दुवैको भूमिका खेल्न सक्षम छ। यो अद्वितीय सुविधाले दुई NFC-सक्षम यन्त्रहरू बीच P2P संचार सक्षम गर्दछ। - आवेदन जटिलता भिन्नताहरू RFID ले एउटा साधारण अवधारणा प्रयोग गर्दछ जहाँ पाठकले ट्यागबाट जानकारी निकाल्छ। पाठकले डाटा क्याप्चर गर्न ट्यागहरूबाट रेडियो तरंगहरू पत्ता लगाउनु पर्छ। NFC एक थप जटिल प्रविधि हो जसले पढ्न/लेखन सञ्चालन गर्न अनुमति दिन्छ। यो सुविधाले तपाईंको फोनलाई डिजिटलमा रूपान्तरण गर्छ जबकि निर्दोष साथीहरूलाई सहकर्मी सञ्चारलाई अनुमति दिन्छ। RFID बनाम NFC: कुन राम्रो छ? RFID र NFC बीच छनौट गर्दा, तपाईंको अन्तिम छनौट तपाईंको आवश्यकताहरूमा निर्भर हुनेछ। दुई प्रविधिहरू विभिन्न आवश्यकताहरू पूरा गर्न दर्जी-निर्मित छन्। उदाहरण को लागी; यदि तपाईं आफ्नो सम्पत्ति ट्र्याक गर्न वा आफ्नो सूची व्यवस्थापन गर्न चाहनुहुन्छ भने RFID आदर्श विकल्प हो। RFID ट्यागहरूले पाठकलाई संकेतहरू पठाउनेछ, तपाईंलाई मिनेटमा तपाईंको लक्षित सम्पत्तिको बारेमा जानकारी प्राप्त गर्न सक्षम पार्दै। यदि तपाईलाई पियर टु पियर सेयरिङ, कार्ड रिडिङ, र स्मार्ट पोस्टर रिडिङ सक्षम पार्ने जटिल प्रणाली चाहिन्छ भने NFC उत्कृष्ट प्रविधि हो। यद्यपि, यो प्रविधि छोटो-दायरा हो, र यसलाई कुशलतापूर्वक काम गर्नका लागि उपकरणहरू निकटमा हुनुपर्छ। तपाईले सबै RFID कम्पोनेन्टहरू स्वतन्त्र रूपमा किन्नु पर्ने हुन्छ NFC को विपरीत जुन आधुनिक उपकरणहरूमा एकीकृत हुन्छ। तल रेखा RFID र NFC तुलना कठिन हुन सक्छ, मुख्यतया तिनीहरू बीच उल्लेखनीय समानताहरूको कारणले गर्दा। यदि तपाइँ तपाइँको व्यवसाय को लागी टेक्नोलोजी प्रयोग गर्ने निर्णय गर्दा यस्तो दुविधामा फेला पार्नुभयो भने, यो लेख तपाइँको लागि हो। यसले RFID र NFC प्रविधिहरूका सबै सुविधाहरू हाइलाइट गर्दछ। थप रूपमा, तपाइँ तपाइँको दैनिक व्यापार कार्यहरु लाई सरल बनाउन को लागी प्रत्येक प्रविधि को उपयोग को बारे मा सुझावहरु प्राप्त गर्नुहुनेछ।