Method and device for processing data of intelligent card
A data processing device and data processing technology, applied in the field of communication, can solve the problems of long time spent on CPU cards, performance reduction of CPU cards, and excessive time spent, so as to achieve longer data processing time and avoid higher number of write operations many effects
Inactive Publication Date: 2009-10-21
BEIJING WATCH DATA SYST
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In addition, when the three pieces of transaction data are located in the same page, they are still stored in the above-mentioned way, that is, at least three write operations are still required
[0004] In the process of realizing the present invention, the inventor found that there are at least the following problems in the prior art: a single write operation of a non-volatile storage medium takes a lot of time, and the CPU card needs to perform multiple write operations in a single transaction. Write operation, therefore, the CPU card takes a long time to process transaction data, which reduces the performance of the CPU card
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[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0024] In order to improve the performance of the CPU card, the embodiment of the present invention provides a data processing method of the smart card, such as figure 2 As shown, the data processing method of the smart card in the embodiment of the present invention includes:
[0025] 101. Obtain transaction data record information;
[0026] The transaction data record information is transaction data that needs to be written into a non-volatile storage medium du...
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The embodiment of the invention discloses a method and a device for processing data of an intelligent card and relates to the field of communication. In order to improve the performance of a CPU card, the technical proposal provided by the embodiment comprises the following steps: obtaining transaction data record information; concentratively caching the transaction data record information into a volatile storage medium; obtaining a custom-built storage page of the transaction data record information from the nonvolatile storage medium; and concentratively writing the cached transaction data record information into the storage page of the transaction data record information. The embodiment is suitable for the field of the intelligent card.
Description
technical field [0001] The invention relates to the communication field, in particular to a data processing method and device for a smart card. Background technique [0002] With the advancement of smart card contactless communication technology and the reduction of cost, the application of contactless smart cards is increasing. Among them, the Mifare 1 card was used earlier, but the Mifare 1 card itself does not have computing power and cannot effectively guarantee the security of the data in the card. Therefore, in the field of contactless smart cards, CPU cards featuring open interfaces, high security, and scalable applications will be further developed. [0003] In the prior art, the processing of the transaction data by the CPU card is as follows: figure 1 As shown, suppose that this transaction needs to store three pieces of transaction data in the non-volatile storage medium, which are respectively data 5 in page 1, data 6 in page 2, and data 7 in page 3, each of wh...
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IPC IPC(8): G07F7/08G06F17/00G06K17/00
Inventor 罗迎刘海蛟
Owner BEIJING WATCH DATA SYST