RFID Anti-counterfeiting Solution

RFID technology can effectively solve the rampant phenomenon of anti-counterfeiting products. In the application of RFID anti-counterfeiting, clothing anti-counterfeiting is commonly used. Clothing manufacturers put their own unique RFID tags and clothing in cartons at the same time, each carton has its own unique ID code.

Application Scheme of RFID Anti-counterfeiting

RFID technology can effectively solve the increasingly rampant phenomenon of product counterfeiting and forgery prevention
It is estimated that the world’s market affected by counterfeit products reaches 300 billion US dollars annually, which is quite alarming, 10% of the total world trade. While counterfeit products are flooding the market, they also cause a lot of work to be lost. The EU estimates that 100,000 people have lost their jobs because of counterfeit products. Needless to say, some inferior products of special products, such as aircraft parts and medicines, directly threaten people’s life safety.
The world market affected by counterfeit products reaches 300 billion US dollars annually, which is 10% of the total world trade.
For manufacturers, one of the main advantages of RFID technology is that it can be directly integrated into existing products, machines or equipment without major changes to existing production equipment. The RFID tag itself has the function of reading and writing, which can be written into the manufacturer’s unique encrypted codes and easily integrated into various commodities.
An important factor of whether the RFID system can be used in commerce is that the same kind of tags can be applied to different products because this can lead to the expansion of the scale of tag production, and ultimately reduce the price of tags to an acceptable range. However, for some valuable commodities, the size of the label is far more important than the price of the label.
In general, UHF tags are larger in size than UF tags. For small and valuable goods, a slightly larger size of the label may affect the appearance of the goods. In such cases, the size of the label required is as small as possible, which will not hinder users. From the point of view of tag storage data, read-only tags are generally one-time programmable, low-cost, but there must be a backup database to track effectively.
Label data that can be read and written many times is stored in a large amount. Generally, all product information can be stored without the support of the backup database. This kind of label is more expensive and larger than the one-time programmable label.
For manufacturers, the last thing they want to see is that the reading of RFID data slows down production. UHF tags have a long reading distance, generally suitable for use in containers or pallets; HF reading distance is relatively short, suitable for some fixed places such as shelves.
When using RFID tags, another factor to be carefully considered is the material of the goods. This has a particular impact on products that are in constant contact with water or where the label is attached to metal. In the former case, the label must be waterproof and use HF technology; because the longer wavelength of HF system is not easy to be absorbed, the high-frequency RF signal is easier to penetrate water or other liquids. HF labels have been tested on textiles and clothing for many years and have proved to be resistant to large changes in liquid, pressure and temperature range.
When the tag is attached to the metal surface, it will also affect the RFID system. RF signal can not pass through metal, so when the metal material is close to HF antenna or UHF tag and reader, the reading and writing distance of the RFID system will be greatly affected. Another disadvantage is absorption: metals can absorb RF signals, which also affects HF and UHF tags in varying degrees.
The reading and writing distance of HF tag is relatively short. UHF tags are far enough from the metal surface to read and write, but if the tag is too far from the metal surface, its abrupt part will affect the usability of the tag, so the ideal height is 5 mm.

In the application of RFID anti-counterfeiting, clothing anti-counterfeiting is commonly used.

Clothing manufacturers put their own unique RFID reading and writing labels in cartons with the clothes they produce. Each carton has its own unique ID code. When the production process is completed to the delivery process, each carton passes through an RFID tag reader, and all the information of the carton is read and transmitted to the PC. Comparing the actual information read by PC software system with the planned deliveries of the carton, we can judge whether the carton is released or not. At the same time, if the carton is released, the ID number of the carton will be written into the memory of each label and locked.
Manufacturers can also write corresponding information to other data blocks of tags through handheld RFID devices in QA inspection and other stages. In this way, the entire transport of all clothes from production to distribution centers to retail sales can be recorded.

RFID Technology Helps to avoid Wine Products

Robert Louis Stevenson, a famous American writer, once compared wine to “bottled verse”. Today, as wine producers and sellers gradually turn their attention to radio frequency identification technology (RFID), this magical liquid seems to add a bit of “wisdom” besides romance. ” In addition, wine manufacturers are constantly looking for new ways to promote their products. In the colorful packaging marketing, RFID will gradually become a new favorite. While realizing the tracking function, it will also help to improve the product safety of the consumer supply chain, and for the long-term problem of product forgery entangled in the wine industry, RFID is also a big problem. It’s good.
Recently, Americans’enthusiasm for wine has increased considerably. The number of people who drink at least one glass of wine a week has increased from 19.2 million in 2000 to 2.

wooden rfid card

Application of RFID Labels

Over the past decades, the theory of RFID technology has been enriched and improved. Active, passive and semi-passive electronic tags have been developed rapidly. Single-chip electronic tags, multi-tag reading, wireless readable and writable, long-distance identification of passive electronic tags, RFID adapted to high-speed mobile objects are becoming a reality. At present, the application fields of electronic tags include the following aspects.
Logistics industry: goods tracking in the logistics process, automatic information collection, warehousing application, port application, postal express delivery.

Retail business

real-time statistics of commodity sales data, replenishment, anti-theft.

Manufacturing industry

real-time monitoring of production data, quality tracking, automated production.

Medical industry

medical device management, drug management, and HIS system.

Identity recognition

electronic passport, identity card, student card, and other electronic documents.

Anti-counterfeiting

Anti-counterfeiting of valuables (cigarettes, alcohol, drugs) and tickets.

Asset management

the management of all kinds of valuable or similar assets, or dangerous goods.

Transportation

Expressway toll management, taxi and bus vehicle identification, and management.

Food

Freshness management of fruits, vegetables, fresh food, etc.

Animal Recognition

Recognition and management of domesticated animals, livestock and pets.

Library

The application of book management in bookstores, libraries and publishing houses.

Automobile

Manufacturing, Anti-theft, positioning, car keys.

Aviation

Manufacturing, Passenger Ticket, Baggage and Parcel Tracking.

Military

Identification and tracking of ammunition, guns, materials, personnel and vehicles.

Application of UHF RFID Technology in Clothing Industry

UHF RFID technology can be informationized from garment production, product processing, quality inspection, warehousing, logistics, transportation, distribution and product sales, providing users with real-time dynamic tracking and query; realizing the monitoring and management of processing information, system operation status and business operation quality, and at the same time providing managers at all levels with information. Providing real, effective and timely management and decision-making support information and providing support for the rapid development of business will solve all the problems, thus reducing costs comprehensively and improving profits and competitiveness. Next, we will introduce the application of UHF RFID in garment field in detail.

1. Clothing RFID Anti-counterfeiting Function

In the production process of RFID garment management, some important attributes of single garments, such as name, grade, goods number, model, fabric, lining, washing method, execution standard, commodity number, and inspector number, are written into corresponding electronic tags by using UHF RFID card issuer, and the electronic tags are attached to garments.
The attachment methods of RFID tags can be adopted: inserting them into clothing, making them into nameplates or hanging tags, or retrievable anti-theft hard tags, etc. Giving each garment a unique global ID number that is difficult to forge can effectively avoid counterfeiting and solve the problem of garment counterfeiting.

2. Clothing RFID Warehousing Management

Because UHF RFID technology can recognize multi-tags at the same time in the non-contact and non-visual situation, that is to say, dozens of garments with UHF RFID tags can read all logistics data accurately through UHF RFID reader at one time, which greatly improves logistics efficiency.
Ultra-high frequency RFID technology can be used in the storage management of RFID garment management to realize the visual management of all management units. It can greatly shorten the time of packaging, handling, inventory, and statistics, thus reducing cargo losses, speeding up a capital turnover and greatly improving the efficiency of storage management.
Through this process, 15,000 garment items can be validated hourly in only one UHF RFID channel. Automation of the validation process can reduce the time spent on the supply chain by 5 to 7 days.

3. Inventory of warehouse RFID technology to avoid out-of-stock and Out-of-code

For manufacturers and clothing stores, the UHF RFID reader can be used for warehouse inventory. Customers can automatically analyze the labels read by the reader so that they can know the actual number of a certain type, a certain color, a certain type of clothing, so as to ensure the balance of inventory, and timely replenishment, so as to avoid a certain clothing store clothing. Shortage or code breakage to ensure the normal needs of customers.

4. store RFID security

UHF RFID reader has relay output function inside, that is, when UHF RFID reader reads labels or special format labels, UHF RFID reader closes the relay, which triggers the closure of external relays and triggers alarm or alarm light alarm. There are several kinds of anti-theft for RFID tags. Situation:

4.1 The RFID tags of clothing stores need to be recycled

In this case, the reader installed at the garment door only needs to read the label to trigger the external alarm.

4.2 No Recycling of RFID Labels in Clothing Stores

In this case, clothing stores can use UHF RFID reader to rewrite the label on the clothing that customers are about to buy, define a byte of data, when the byte is 0, it means not purchasing, when it is rewritten to 1, it means purchasing, when the reader at the door reads the unrewritten label, it triggers an external alarm to alarm, and When reading the rewritten label, no external alarm will be triggered.

5. RFID quick stocktaking

UHF RFID handset can real-time inventory goods on the shelf and store backstage. It can generate report forms according to region and shelf position, generate data in a specified format according to actual requirements, and upload them to the store management system in real time or offline way.

6. RFID quick cash register

Through fixed UHF RFID reader or RFID handheld cash register, the system can quickly collect the information of goods selected by customers and generate sales lists, which greatly saves the checkout time. Salesmen can use more valuable time to focus on customer service.

Main Application of Low Frequency RFID

In fact, RFID technology is first widely used and promoted in low frequency. This frequency mainly works by inductance coupling, that is, there is transformer coupling between the reader coil and the sensor coil. The voltage induced by the alternating field of the reader in the antenna of the inductor is rectified and can be used as the supply voltage. The magnetic field region can be well defined, but the field intensity decreases too fast.

Main applications of low frequency RFID:

1. Animal husbandry management system.

2. Application of car anti-theft and keyless door-opening system.

3. The application of marathon running system.

4. Automatic parking fee collection and vehicle management system.

5. Application of automatic refueling system.

6. The application of hotel door lock system.

7. Access control and safety management system.

What is RFID

Radio Frequency Identification (RFID) is a wireless communication technology, which can identify specific targets and read and write related data through radio signals, without establishing mechanical or optical contact between recognition system and specific targets.
Radio signals are transmitted from tags attached to objects by electromagnetic fields tuned to radio frequencies to automatically identify and track the objects. Some tags can get energy from the electromagnetic field emitted by the identifier when they are identified and do not need batteries. Some tags have their own power supply and can actively emit radio waves (electromagnetic fields tuned to radio frequencies). The tag contains information stored electronically and can be recognized within a few meters. Unlike bar codes, radio frequency tags do not need to be in the sight of the identifier, but can also be embedded in the tracked object.
Radio Frequency Identification (RFID) technology has been used in many industries. By attaching the label to a car in production, the factory can easily track the progress of the car on the production line. Warehouses can track where drugs are. Radio frequency tags can also be attached to livestock and pets to facilitate active identification of livestock and pets (positive identification means preventing several livestock from using the same identity). Radio Frequency Identification Card (RFID) allows employees to enter the locked building. Radio Frequency Transmitters on automobiles can also be used to collect fees for toll sections and parking lots.
Some radio frequency tags are attached to clothing, personal belongings and even implanted into the human body. Because this technology may read personal information without my permission, this technology also has the risk of violating personal privacy.

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RFID technology is not far away from us

Since Amazon opened the first unmanned supermarket AmazonGo in the United States, unmanned retail stores can be described as hot. For a time, retail giants such as Ali and Jingdong have entered the game. The reason why unmanned supermarkets are able to realize unattended, is relying on a technology – RFID technology. So what exactly is RFID technology? What is the current application situation? Xiao Bian today to explain in detail.

Detailed understanding of RFID technology

RFID (Radio Frequency Identification) is also radio frequency identification, also known as electronic tag live radio frequency identification. RFID technology is a non-contact automatic identification technology. It automatically identifies target objects and obtains relevant data through radio frequency signals. The recognition work can work in various harsh environments without manual intervention.

The “Communication by Means of Reflected Power” published by Harry Stockman in 1948 in the Institute of Radio Engineers laid the theoretical foundation for RFID technology. This technology began to appear in the mid-1980s, and with the maturity of large-scale integrated circuit technology, the size of the radio frequency identification system has been greatly reduced, so it has only entered the practical stage.

It is reported that RFID technology can identify and tell moving objects and can identify multiple labels at the same time, and the operation is quick and easy. Short-range RF products are not afraid of harsh environments such as oil stains and dust pollution, and they can replace bar codes in such environments. Long-range radio frequency products are mostly used for traffic, and the identification distance can reach several tens of meters.

How RFID systems work

The RFID system consists of the following components:

1 electronic tag

RFID technology is not far away from us
Composed of a chip and a tag antenna, it communicates with the reader through the principle of inductive coupling or electromagnetic backscatter.

2 readers

RFID technology is not far away from us
It is a device that reads/writes tag information. As a data acquisition terminal, the reader/writer also needs to exchange data with middleware.

3 antenna

RFID technology is not far away from us

It is a device that provides spatial propagation of RF signals for tags and readers.

4 Middleware

It is the link between RFID devices and enterprise applications, and it is also the core of RFID application system.

The working principle of RFID system is as follows:

The information to be sent by the reader is encoded and loaded on the carrier signal of a certain frequency and sent out via the antenna. The electronic tag entering the working area of the reader receives the pulse signal, and the relevant circuit in the chip in the card modulates this signal. , decoding, decryption, and then judge the command request, password, permissions, and so on. If it is a read command, the control logic circuit reads the relevant information from the memory, encrypts, encodes, and modulates it, then sends it to the reader through the card antenna, and the reader demodulates, decodes, and decrypts the received signal. To the central information system for data processing; if it is a write command to modify information, the internal charge pump caused by the control logic raises the operating voltage, provides overwriting of the contents of the EEP-ROM, rewrites it, and judges its corresponding password and authority. If it does not match, an error message is returned.

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Mobile RFID smart card mainstream solution

In recent years, the market environment of the communications industry has undergone tremendous changes. The trend of internetization of communications services has become more and more obvious. The telecommunication networks are increasingly channelized and telecommunication services are becoming increasingly virtualized. Companies without a network can provide more services through the use of network channels. The more communication services, the traditional telecommunication operators rely solely on providing simple voice and data communications to gain profit more and more difficult to continue, and have to transition to “information services.”

On the other hand, with the rapid development of electronic technologies, more and more functions have been integrated into mobile phones, such as media broadcasting, games, photography, and navigation. Mobile phones have become more than just a communication tool, but have increasingly become a personal synthesis. Entertainment and information terminals.

How to expand the functions of mobile phones, in addition to the traditional communication through mobile networks, mobile phones can also serve the informatization applications such as mobile e-commerce, Internet of Things, and media advertisements that operators want to enter. This is the focus of research in the field of mobile communications in recent years. Among them, mobile phone RFID technology has achieved breakthrough results and began commercial use.

Mobile phone RFID technology integrates the RFID chip in a mobile phone or mobile smart card (SIM/UIM) to integrate the functions of the mobile phone and the RFID function. The user can use the mobile phone to achieve many applications such as financial services, shopping consumption, car service, and identity authentication.

Since the mobile phone-based RFID technology is not supported by the telecom operators, this paper will mainly study the implementation plan, application status, existing problems, and development trends of mobile smart cards that integrate RFID radio frequency functions (hereinafter referred to as mobile phone RFID smart cards). .

2 Mobile RFID smart card mainstream solutions

At present, the mainstream mobile phone RFID smart card solutions at home and abroad can be divided into two categories according to the operating frequency, that is, the 13.56 MHz scheme and the 2.4 GHz scheme. Among them, the 13.56MHz scheme can be further divided into eNFC scheme, dual interface card self-contained antenna scheme, and dual interface card handset customization scheme. The following describes four kinds of mobile phone RFID smart card solutions.

2.1 eNFC solution

The eNFC solution integrates RF RF antennas and radio frequency communication control functions into mobile terminals, stores RFID data storage and data processing functions on mobile smart cards, and communicates between cards and mobile phones through the SWP protocol to integrate RFID and mobile phones.

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Held captive by arduino and multiple RFID

If you’re the kind of person who has friends RFID “combination”, and/or leaves the confines of the basement from time to time, we hear that these “Escape Rooms” are all the rage. Basically you get locked into a room with a couple other people and have to solve various problems and puzzles until you’ve finally made enough progress that they let you out. Which actually sounds a lot like the working conditions here at Hackaday HQ, except they occasionally slip some pizza rolls under the door for us which is nice. The video after the break shows some highlights of the build, as well as a quick demonstration of how both the RFID “combination” and manual override can be used to trigger the attached relay.

Whichever side you find yourself on in one of these lighthearted hostage situations, knowledge of this multi-tag RFID lock created by [Annaane] may come in handy. By connecting multiple MFRC522 RFID readers to an Arduino Uno, she’s come up with a method of triggering a device (like an electronic door lock) only when the appropriate combination of RFID tags have been arranged. With a little imagination, this allows for some very complex puzzle scenarios which are sure to keep your prisoners enthralled until you can lower the lotion down to them.

Her code allows you to configure the type and number of RFID cards required to trigger one of the Arduino’s digital pins, which usually would be connected to a relay to fire off whatever device you want. The Arduino sketch is also setup to give “hints” to the player by way of a status LED: fast blinking let’s you know the tag scanned is wrong, and slow blinking means you don’t have enough scanned in yet.

The video after the break shows some highlights of the build, as well as a quick demonstration of how both the RFID “combination” and manual override can be used to trigger the attached relay.