Knowledge of the hottest anti magnetic stripe card

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Knowledge of high magnetic stripe card

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magnetic stripe technology

the main reasons for magnetic stripe reading errors

1. If the magnetic stripe accidentally erases the magnetic stripe information, it may not be able to be read out by POS or ATM during trading, at this time, the card account data must be keyed in, or even cancel the transaction. Nearly two-thirds of magnetic stripe reading errors are due to accidental erasure of magnetic stripe information (magnetic loss) As a result, there are usually the following:

put the magnetic strip card near the magnet or household appliances with strong magnetic field effect, so that the magnetic medium in the card will fail under the action of the magnetic field

the position of the magnetic strip stuck in the wallet or wallet is too close to the magnetic buckle, and the magnetic medium on the card is demagnetized and damaged

due to careless storage or use, the magnetic stripe information on the card is lost due to external force. Such as being pressed, folded, scratched, soiled, etc

the two magnetic cards were inadvertently placed back-to-back, and their magnetic media rubbed and collided with each other, so they were damaged

2. Another reason for the failure of magnetic reading is the poor maintenance of the terminal magnetic head, which is easy to solve. The issuer only needs to use a simple terminal cleaner. This kind of cleaner is equipped with a card cleaner to remove fluff and dust on the surface of the terminal from time to time. Proper maintenance of the terminal head can improve the terminal card reading ability and reduce the card reading error rate by 30%

3. The improper operation of the cashier of the special cantilever material merchant and the failure of the POS magnetic head will also cause the magnetic reading failure

the reason for the magnetic writing error, the improper debugging of the magnetic writing equipment, the incomplete erasure of the original magnetic stripe information when re writing the magnetic card, and the improper handling of the magnetic card during the transportation and storage process caused the magnetic writing loss. Researchers from the Masdar Institute of science and technology in Abu Dhabi have just submitted an eye-catching 3D printing patent application error. It is worth mentioning that some of the early factory punch cards or punch cards produced by individual manufacturers, Without adjustment, writing magnetic field on cards with different thicknesses may also cause different degrees of writing magnetic errors. At this time, the maintenance personnel of the punch card machine can adjust the relevant parameters of the punch card machine, that is, the error rate of magnetic writing can be reduced. Once the magnetic card loses magnetism, it will bring a lot of trouble to the cardholder. Therefore, in order to prevent the magnetic stripe from falling off, the cardholder should pay attention to protect the magnetic stripe and store it carefully during the use and storage of the magnetic card, so as to avoid folding and pressing, so as to avoid unnecessary trouble

the solution of magnetic stripe demagnetization -- hi co magnetic stripe

magnetic reading errors caused by magnetic stripe demagnetization often lead to the cancellation of transactions and the dissatisfaction of cardholders. Holders of invalid cards may ask the issuer to change their cards, but they are more likely to simply stop using the card. Therefore, the performance of magnetic stripe not only affects the mutual interests between cardholders and card issuers, but also involves customer service and profits

visa action

visa proposed at the 1997 Bali business card printing symposium that from July 1, 1998, all issued cards should be gradually converted to high-density magnetic stripe cards, and the conversion of high-density magnetic stripe from 1996 to 2003

in order to reduce the error rate of card reading and strengthen customer service, Visa International in Latin America and the Caribbean decided to adopt the high magnetic 2-field method for visa cards issued in the region from January 1, 1999. The magnetic stripe information input in this way will not be erased by the ordinary magnetic field, and the anti demagnetization force is six times that of the original

now, the proportion of high-density magnetic stripe cards in the total number of cards issued in the United States is: 46% of card issuers have begun to order high-density magnetic stripe cards; 32% of the cards have been converted to high-density magnetic stripe cards in 1997; 22% of the cards have not yet decided whether to use high-density magnetic stripe

mastercard's action

mastercard International's solution to the problem of magnetic stripe loss is to convert the circulating MasterCard card into a high-density magnetic stripe by December 2002. (the magnetic field density is Auster). According to MasterCard member banks, some banks that use high-density magnetic stripe and low-density magnetic stripe at the same time, the proportion of high-density magnetic stripe is 70%, and the card reading and writing error rate has decreased by half. Even some banks that have adopted high-density magnetic stripe report that the error rate of reading and writing high-density magnetic stripe is less than 0.2%. The following table is a set of data provided by a MasterCard member bank, showing the remarkable results achieved by using high-density magnetic strips

annual total read and write magnetic error rate track error high density magnetic stripe card proportion

color and performance of magnetic stripe

magnetic stripe manufacturers can supply magnetic stripes of various colors according to market demand, such as gold, silver, red, green, blue, Brown, black, etc. The reason why the magnetic stripe shows different colors is that the protective layer of the standard magnetic stripe is painted with the required color. At present, the standard magnetic reading and writing equipment can read and write magnetic stripes of different colors, so the color of magnetic stripes does not affect the normal magnetic reading and writing. Generally, the color of low-density magnetic stripe is brown and the color of high-density magnetic stripe is black, so that users (including business card printing and card issuers) can distinguish low-density and high-density magnetic stripe in color in the process of production, storage, etc

whether the magnetic stripe can read and write magnetism normally is closely related to the electromagnetic performance, including the slope of saturation curve, signal amplitude, resolution, burst and erasability. The magnetic stripe is composed of three tracks: Alphanumeric track -- the first track; Digital track -- the second track; Read/write track ----- the third track, whose quality is mainly marked by signal amplitude, burst and erasability. According to national and international standards, the index to measure signal amplitude, burst and erasability is a relative ratio of data

(1) signal amplitude: divided into average signal amplitude and single signal amplitude. The average signal amplitude means that on ordinary magnetic card reading and writing machines, when information is written on the card with a certain recording current, when the amplitude is low and does not meet the standard, there will be no information written at the position where the information should be written, resulting in data loss, and its balance will have a great impact on the reliability of the magnetic card; The radiance of a single signal indicates that when the magnetic strip on the card is polluted or scratched, the magnetic medium falls off, resulting in the failure of information recording

(2) burst: it means that the static magnetic properties of the magnetic stripe itself do not meet the requirements (Rough magnetic layer surface and thin magnetic layer, etc.) or when the card reading machine is highly sensitive to noise, the information was read out where the magnetic stripe did not record information

(3) erasability: it means that the letter should be deleted as a card swiping action

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