Mode applications and technical solutions of mobile phone card swiping technology
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Mobile phone swiping cards to achieve identity authentication and payment is one of the most promising projects for users. According to reports, a survey conducted by AC Nielsen Research in China shows that more than 80% of consumers want to use bus cards, bank cards,Access controlTools such as cards are integrated into the mobile phone. After the mobile phone card integrates functions such as bus card, bank card and key, it can replace all kinds of cards in the wallet. A series of new application models will be launched on a large scale-with a mobile phone aimed at the card reader, you can take the bus and subway, watch movies, pay bills in restaurants, and even make appointments for hospital expert outpatient consultations. It becomes easy…
The following first briefly introduces the technical mode of mobile phone card swiping, and discusses the technical solution for the construction of the smart building card system.
Three technology modes of mobile phone swiping
There are three main technical solutions used in mobile phone card swiping, NFC, SIMPASS, and 2.4GHz RFID-SIM.
NFC:
Near Field Communication (NFC) is realized through electromagnetic induction coupling of the radio frequency part, and evolved from the integration of non-contact radio frequency identification (RFID) and interconnection technologies.
NFC was first proposed by Philips and Sony. It was approved by the ISO/IEC organization on December 8, 2003 and became an international standard. It was recognized as a European standard by ECMA on March 18, 2004.
NFC uses 13.56MHz as the frequency standard for short-range communication, and is compatible with radio frequency standards such as ISO/IEC 14443, ISO/IEC 15693, and Sony’s Felica. The typical operating distance is only a few centimeters, and the data transmission speed can be selected from 106Kb/s, 212Kb/s or 424Kb/s, which can be increased to about 1Mb in the future.
The technical solution based on the NFC mobile phone terminal is to integrate the NFC control chip, contactless application chip, and radio frequency antenna into the mobile phone. NFC communication can realize three application modes: card simulation, reader simulation, and point-to-point communication.
Card simulation: bank cards, loyalty cards, various stored-value cards, identity recognition, access control, industry cards and other applications;
Reader mode: read label advertisements, anti-counterfeiting and other applications;
Point-to-point communication mode: Provide services such as data transmission and games between two NFC devices.
In recent years, a lot of experiments on the application of NFC technology have been conducted at home and abroad, which has laid a good foundation for technological improvement and application promotion. Bank of America piloted the use of mobile phones to provide the MasterCard PayPass application; the Paris bus and subway system in France adopted near field communication technology to realize the use of mobile phones to purchase tickets and deduct the fare, and launched the commercial version of the SAGEM contactless mobile terminal and the corresponding SIM card ; From Europe to North America, near field communication applications have gradually moved from pilot work to trial commercial use. In Asia, Japan’s NTT DoCoMo and South Korea’s SK Telecom have also started to use mobile wallets for on-site payment services. In Shanghai, Xiamen, Chongqing, and Wuhan, there have also been reports of on-site trials of mobile phone identity authentication and electronic payment based on NFC short-range communication.
The technical solutions based on NFC mobile phone terminals have inherent defects. If users want to use mobile phones for card swiping and payment services, they must replace mobile phones with NFC functions. This market barrier is particularly prominent in China.
SIMpass
SIMpass is a product with dual interface smart card technology penetrating the mobile phone field, and it is a new mobile phone SIM card. SIMpass is a dual-interface SIM card that supports two working interfaces, contact and non-contact. The contact interface realizes the SIM function, and the non-contact interface realizes the payment function. SIMpass not only has the same telecom application function as a normal SIM card, but also can communicate with the card reader through the antenna attached to it for short-range wireless communication, so that it can be extended to non-telecom applications, especially mobile phone on-site payment functions. The contactless interface of SIMpass uses 13.56MHz as the frequency standard for short-range communication, compatible with ISO/IEC 14443.
Based on the technical solution of the SIMpass mobile phone terminal, there are two antenna contacts on the SIM card to externally connect the antenna, and the antenna design can be realized in two ways: if a customized mobile phone is used, the antenna can be arranged by modifying the mobile phone battery or motherboard On the battery or the motherboard; if you use an existing mobile phone, you can weld the external antenna to the SIM card.
SIMpass has already made some application trials in China Mobile, but it is at a disadvantage in the market. The reason is that it relies on chip manufacturers to make products on the one hand, and on the other hand, it urgently needs the support of operators. Like NFC, cardholder acceptance is a big issue.
RFID-SIM
RFID-SIM card and SIMpass are also products with dual-interface smart card (RFID card and SIM card) technology penetrating the mobile phone field. The difference is that the non-contact interface uses 2.4GHz as the communication frequency, and the antenna and chip integrated design is integrated, which can be called Single chip dual interface smart card. The single-chip RFID-SIM card product has no difference in appearance from the existing SIM card.
The RFID-SIM single-chip dual-interface smart card supports two working interfaces, contact and non-contact. The contact interface is responsible for realizing the application of the SIM card and completing the normal functions of the mobile phone card, such as phone calls and SMS functions. At the same time, the contactless interface can realize applications such as contactless consumption, access control, and attendance. And because of the support for over-the-air download related specifications (OTA and WIB specifications), users of RFID-SIM cards can update applications in their mobile phones or recharge their accounts in real time through over-the-air downloads, so that mobile phones can truly become intelligent on-demand charging. electronic wallet.
RFID-SIM is a non-contact technology solution based on a single-chip SIM card independently proposed by China Mobile. There is no precedent in the world, and it can be said to be a Chinese characteristic. According to reports, China Mobile has conducted in-depth research on RFID-SIM related technologies, applied for more than 20 technical patents, and formed a series of its own technical specifications and standards.
RFID-SIM users can use the new generation of RFID-SIM cards without changing their mobile phones to enjoy mobile identity authentication and electronic payment functions. This simple and easy operation will surely become the first choice for the majority of users. In this regard, we can say that the maturity of the RFID-SIM chip has brought hope to mobile phone identity authentication and electronic payment.
Smart building mobile phone card construction based on RFID-SIM technology
From the analysis of the above three technical solutions, it can be seen that RFID-SIM cards have shown a strong development trend. How to use RFID-SIM mobile phone card to build a smart building card? Are there any technical difficulties? Are there any other obstacles to the new mobile phone card system or the transformation of the old system?
We know that the so-called “all-in-one card” means that all internal personnel are equipped with an identification card for identification in all internal work and work behaviors. A smart card can realize the daily management of identity certification, access control, parking, and dining. So that people can fully enjoy the convenience and safety that high-tech brings to everyone’s daily work and life.
The composition of a card system usually has a three-layer structure: the first level is the card central storage and system management layer, including the core central server system, integrated platform software, various system management workstations and application software; the second level is the control layer, including access control Controllers, parking lot controllers, inspection machines, visitor registration machines, POS machines, etc.; the third level is the execution layer composed of on-site terminal equipment, including card issuers, card readers, electric locks, barricades, etc. From the system architecture, we know that the RFID-SIM mobile phone card is used to build a smart building card. The existing first-level management and second-level control are not affected. Only part of the equipment in the executive layer, namely The card-related card reader and the radio frequency read-write unit in the card issuer can be replaced with an RFID-SIM mobile phone card read-write module. Therefore, it is technically feasible to build a smart building mobile phone card, and the principles and implementation methods are no different from the existing systems. ,Easy to implement.
So are there any obstacles to the use of RFID-SIM mobile phone cards for new or retrofit smart building card? The obstacle lies in the compatibility of card reader equipment. We know that the technical development of non-contact IC card is from low frequency LF 125Khz, to high frequency HF 13.56Mhz, and then to UHF UHF 915 Mhz, 2.4Ghz. The non-contact IC card devices currently used on a large scale are all aimed at 13.56MHz, while the RFID-SIM technology uses 2.4Ghz. The two are incompatible. Therefore, the existing 13.56Mhz reader and writer devices need to use the 13.56MHz high-frequency card reader radio frequency. The module is replaced with a 2.4Gh radio frequency read-write module, and the corresponding interface software needs to be adjusted.
The newly-built system can directly use 2.4Gh radio frequency read-write module, so how to transform the old system? You can use dual-frequency compatible read-write modules. This can ensure that the card originally issued can continue to be used, and new users can choose a mobile phone card without having to reapply for a card.
With the development of smart card technology for more than ten years, a large number of outstanding professional smart building card equipment manufacturers have emerged in our country, such as Yichuang Technology, which has accumulated rich experience and laid a good foundation for the construction of mobile phone card. In terms of my country’s mobile phone coverage, the mobile phone card is a market with huge potential. All sectors of the industry will join hands and work together to promote the development of the mobile phone card in China.
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