No contact card is easy to entanglement

If we talk about IC card recognition technology, then its origin with us can be really short. Since 10 years ago, IC cards have begun to enter our daily lives. Initially, the advent of IC cards was mainly based on the needs of city information management and identification.

Non-contact recognition opens a new way of life
If you talk about the impression of public transport in Beijing, crowding and making money seem to be the best choice for many people. But to talk about the key points that help us save money, then this cartoon is the entanglement that we love and hate. Sometimes just because of a small loss, our 20 yuan slipped away from our own eyelids. So, the one-card is to facilitate us and also encourages the anger of our hearts. So, what kind of technology is this delicate thing? Here we will explore the mystery of information identification in contactless IC cards.

M1 card open contactless recognition

If we talk about IC card recognition technology, then its origin with us can be really short. Since 10 years ago, IC cards have begun to enter our daily lives. Initially, the advent of IC cards was mainly based on the needs of city information management and identification, and application customers were mainly based on the business applications of large enterprises.

For people familiar with the field of information recognition, I am afraid that the word MifareOne will not be too unfamiliar. It is the most frequently mentioned M1 technology in the field of information identification. Under normal circumstances, M1 card has an LC series resonant circuit, the frequency of which is the same as the frequency emitted by the transmitter. Under the excitation of electromagnetic waves, the LC resonant circuit resonates, so that the capacitor has a charge in the capacitor. At one end, a unidirectional pump is connected to store the charge in the capacitor to another capacitor. When the accumulated charge reaches 2V, this capacitor can be used as a power source to provide operating voltage for other circuits. Send out or access the reader's data.

The long-sightedness is not bad, M1 is hard to pick
Since the advent of this technology, it has covered almost all areas of non-physical contact transactions and information identification. Because it successfully solves the two problems of passive and contactless, it is more widely used in bus, ferry, and subway automatic toll collection systems. In our security industry, most of the technologies such as access control, authentication, and e-wallet also use M1 technology as a carrier for applications. Because it only requires a simple contact process to complete the entire transaction, eliminating the need for more complicated work processes and lengthy time, and the cost is not very high, so it is even more common than ordinary swipe magnetic stripe Good prospects.

However, with the continuous maturity of the city's card system, the use of M1 cards has become more and more widespread, and its drawbacks have become more and more apparent.

The first is the capacity issue, because in today's society, the integration of functions has become the main manifestation of technological development. Therefore, this also puts forward higher requirements for the capacity of M1 cards. However, under the existing technology, although the M1 card has been upgraded several times, it still cannot meet the application requirements of the market.

In addition, as more and more money is installed on the card, the M1 card gradually evolves from a simple counting function into a virtual wallet. However, from the perspective of security, it is clear that the M1 card is still difficult to adapt to such a high security altitude. The events that are copied and cracked happen from time to time, and in their own active defenses, the M1 card is basically in an undefended state. Although it can be traced afterwards, it is still difficult for people to rest assured that they are tasked.

As mentioned in the above article, since the card is operated by coils and chips, the magnetic environment, card bending and punching can all damage the work of the card. It can even be said that a slight misalignment of the components will cause the magnetic field of the card. Changes occur, which can cause the card to fail or be scrapped. Therefore, its vulnerability is also an important cause of card disputes.

No contact card easy to tangled card growth path where new technology to improve card characteristics
As mentioned above, with the soaring demand, the traditional M1 card has been difficult to meet the huge needs of the current society. For the future of the road, wireless touch IC cards are now facing two options to grow or update.

The growth mentioned here refers to upgrading the original M1 product, increasing the storage capacity of the card, and using the AES algorithm to improve the security of the card. This improves the card's ability to work under minor changes. However, the weak compatibility is still an unavoidable flaw, and it is also doomed to become a reality for transitional roles.

The update mentioned is using a new technology called a CPU card. In fact, the history of CPU cards is not young, but due to the high cost, CPU cards have always been difficult to get in the field of non-touch recognition. However, with the increasing security risk of M1 cards, CPU cards have also been more and more people think.

Compared with the traditional M1 card, the CPU card uses a microprocessor chip as a card core and consists of hardware and software. In the work through the special antenna can read and write the contents of the card. Because of its better packaging, it has stronger preservation and anti-pollution capabilities. In addition, based on its higher level of intelligence, the CPU card can achieve greater storage, greater security, and a richer field of effectiveness in the role of a dedicated operating system. Compared with the traditional M1 card and its upgraded version, it is destined to be the new head of future contactless identification technology. But taking into account everyone's acceptance of the CPU card and the degree of sophistication, for its application we are only in the initial stage of a transitional period.

IC Card Development from the Perspective of Internet of Things

As an important part of the Internet of Things, the development of the identification system is certainly related to the development of the Internet of Things. In the news of the previous two days, there was a report mentioning that in this year's college newly-increased majors, 80 colleges and universities have added IoT-related professions, covering electric power, transportation, medical care, environment and safety management. Analysts such as Zhilian and other recruitment websites also gave fairly good prospects. It can be seen that China's Internet of Things industry has begun to enter the state quickly under the role of the Internet of Things development plan previously released.

In some of our previous studies, the problems that the unpopular industry often encountered were industry-related standards, or the mismatch in the development of assistive technologies, which dragged down the development of the industry. Nowadays, the Internet of Things has been set up professionally to reflect the current society’s attention to the development of the Internet of Things. Then the standards and technologies involved in it will also achieve more coordinated and comprehensive development. It is expected to become autonomous. This certainly has a huge pulling effect for the development of touch-free IC card technology. It also creates a more relaxed space for the development of the entire identification technology. Under the influence of this social atmosphere, the pace of M1 card transition to CPU cards is undoubtedly much faster than before.

With the frequent use of touchless IC cards and security issues, the arrival of non-contact recognition technology has been reflected. For any technology, this change is a long-term, continuous improvement. Regardless of whether the pace of development is large or small, or whether the speed is fast or slow, in the current era of persistent hot IoT, we absolutely have confidence in it.

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