How does RFID technology realize the anti-counterfeiting of consumables!!

　　How does RFID technology realize the anti-counterfeiting of consumables

　　"315 International Consumer Rights Day" has been established for 36 years, counterfeit and inferior products have always been difficult to eradicate from consumers, but with the continuous innovation of technology, counterfeiting will become more and more difficult to achieve. On this special day, ZLG introduces a set of anti-counterfeiting solutions for consumables from a technical point of view, and provides 30 free sample experience opportunities.

　　We often encounter counterfeit and shoddy products in our lives, such as clothes, shoes, digital products, etc. These fakes generally do not endanger our lives and health, but some fake products pose a serious threat to our lives. For example, consumables such as medical reagents and water purifier filters. Because these consumables are expensive and the profit margins of fakes are high, they are also easy to attract criminals to fake. This article takes the water purifier filter element as an example to introduce the anti-counterfeiting solution for consumables based on RFID multi-channel card reading technology.

　　1Why do water purifier filter elements need anti-counterfeiting?

　　In recent years, people's requirements for drinking water quality have become higher and higher, and the water purifier market has developed rapidly. It is often not the water purifier itself that determines the quality of drinking water, but the water purification filter element inside, which is also the core technology of various manufacturers. Filter elements are consumables, and most manufacturers mainly rely on the sales of filter elements to make profits. The lawbreakers who have spotted this point make inferior filter cartridges at low cost and put them on the market in large quantities, earning high profits, and at the same time harming the health of consumers who cannot distinguish between true and false.

　　How does RFID technology realize the anti-counterfeiting of consumables

　　Figure 1 Water purifier filter element

　　Major water purifier manufacturers have also introduced a series of measures to address this phenomenon, such as opening specialty stores, technical support personnel on-site service to replace the filter element, and designing a filter element with a special structure to make it difficult for counterfeiters to copy and increase the cost of fraud. However, these methods themselves will increase the operating costs of water purifier manufacturers.

　　2RFID filter element anti-counterfeiting solution

　　Because the working environment of the water purifier is humid, high temperature, and not ventilated, contact anti-counterfeiting methods are not desirable, but non-contact RFID technology provides the possibility of anti-counterfeiting. RFID technology (Radio Frequency Identification) is a communication technology that uses radio signals to identify specific targets and read and write related data. Our common bus cards, subway cards, hotel door cards and even ID cards are all applications of RFID technology. So how to use RFID to prevent counterfeiting?

　　How does RFID technology realize the anti-counterfeiting of consumables

　　RFID tags

　　The price of RFID tags (cards) is very cheap, and passive tags do not require power supply and can be directly injected into the housing of the filter element. This will not affect the use, and can also achieve accurate acquisition of filter element information.

　　How does RFID technology realize the anti-counterfeiting of consumables

　　RFID card reader module

　　The card reader module is connected to the main control board of the water purifier through a bus such as RS-232/485, and is distributed in various parts of the water purifier, so that when the filter element is inserted into the water purifier, the main control board can read the card module through RFID Identify whether the filter element is genuine.

　　How does RFID technology realize the anti-counterfeiting of consumables

　　encryption

　　Then someone may ask, the fake filter element is also added with an RFID tag, can't it solve the problem? In fact, it is not. The standard S50 or S70 card is divided into many sectors. Each sector stores data independently and has an independent key. As long as the key is not cracked, there is no way to copy the RFID tag. .

　　How much work does it take to crack these keys? For example, our ID card also uses the CPU-B card in the RFID tag, and the safety factor is quite high.

　　3 multi-channel RFID card reader module

　　If according to Figure 4, a water purifier needs to install 5 RFID card reader modules, then the cost will be greatly increased, but the water purifier manufacturer cannot bear it. Is there any way to read 5 RFID tags in a low-cost way? Of course, ZLG Ligong Technology multi-channel RFID card reader module.

　　How does RFID technology realize the anti-counterfeiting of consumables

　　ARKS16F518N is an 8-channel RFID card reader module developed by ZLG. On the hardware, users do not need to debug a complicated card reader antenna resonant circuit, just simply add power supply, connectors and other circuits to the periphery to use. In terms of software, users do not need to develop the underlying card reader module driver, as long as they pay attention to the development of the application program, mass production can be realized more conveniently and quickly.

　　How does RFID technology realize the anti-counterfeiting of consumables

　　Figure 6 Size of 8-channel RFID card reader module

　　Supports up to 8 antenna boards connected to a single module;

　　When the standard antenna board is used, the maximum reading distance of the card is up to 6cm; support customers to develop their own antenna board

　　Wide working voltage 2.8V~3.6V;

　　Support ISO/IEC 14443 TypeA reader mode;

　　Support low-power external card detection function;

　　ISO14443 TYPEA supports communication rates of 106kbps, 212kbps, and 424kbps;

　　32-bit ARM Cortex M0+ processor, clocked at 48 MHz;

　　Up to 128KB on-chip Flash, 16KB on-chip SRAM;

　　Support ADC, SPI, I2C, UART, PWM;

　　Up to 54 GPIO ports.

　　At the same time, ZLG provides a complete set of software and hardware design materials, participates in the customer's design review process, tracks customer production, and helps customers achieve mass production of products.

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