TWI606424B - System and method for detecting and deactivating illegal access cards - Google Patents

Description

System and method for detecting and disabling illegal access cards

The invention relates to an access control card, in particular to a system and method for detecting and deactivating an illegal access card by using logic for checking the field value of the card number of the pen data and the value of the card number of the previous card data.

At present, the anti-counterfeiting technology of access control cards is more than cryptographically read card content, multiple authentication or access control card entities plus anti-counterfeiting materials, but there is no defense mechanism for illegal access cards. In addition, the historical comparison method may be used to analyze the repetition of the item identification code, but it cannot be applied to the situation where the access card is repeatedly sensed at the same access point.

In the prior art, behavioral model training and inductive path analysis are used to detect suspicious forged access cards. However, this method can be determined by the user himself to determine whether there is a copy/falsification card. It is obviously troublesome for users who often have to enter and exit the control points of different places and the track is not fixed.

It can be seen that the above-mentioned conventional methods still have poor system availability, which is not a convenient and widely applicable design and needs to be improved.

In view of the shortcomings derived from the above-mentioned conventional methods, the inventor of the present invention has improved and innovated, and after years of painstaking research, he finally succeeded in researching and developing this article. System and method for detecting and disabling illegal access cards.

The invention provides a system for detecting and deactivating an illegal access card, which mainly comprises an access card, an access control device and an access control management module, wherein the access control card further comprises an identification information bar and a card number column. The access control machine further includes a card information reading module that reads the identification information bar of the access control card and a card number column. The blacklist comparison module compares whether the information bar matches the card blacklist, and the field writeback module will swipe the card. The number of times is written to the number of times the card is swiped, and the upload module will identify the information bar and the number of times the card is swiped. The access control module further includes a blacklist generation module, which generates a card blacklist, the database stores the card blacklist, and uses the blacklist download module to download the card blacklist to the blacklist comparison module, the abnormality detection module. Compare the identification information bar and the card number column of the access card.

The invention provides a method for detecting and deactivating an illegal access card, the steps comprising: the access control system uses the card information reading module to read the identification information column and the card number column of the access card; the blacklist comparison mode of the access control machine The group comparison identifies the information column and the card blacklist. If the identification information column matches the card blacklist, the field writeback module deletes the content of the identification information column. If the identification information column does not match the card blacklist, the field returns to the write mode. The group adds the number of card swipes to the card number column and opens the door; and the uploading module of the access control device uploads the identification information bar, the card number column and the card swiping time of the access card to the database of the access control module for storage.

The access control module is for reading the record of the corresponding number of times of the card in the same identification information column in the database, and the abnormality detecting module is in accordance with the order of the time of the card swiping. The value of the position of the number of times before and after the card is counted; and if the number of digits of the number of times before and after the card is regularly accumulated, the access card is judged to be normal; if the number of bits in the number of times before and after the card is irregularly accumulated, the access card is judged as An illegal card, a blacklist generating module, generates a card blacklist and is downloaded to the access control machine by the blacklist download module.

The difference between the present invention and the prior art is that the present invention utilizes the reading and writing technology of the access card field of the access control card and the access control card, and the access control management module checks the field value of the card card number and the card number of the previous card card column. Whether the bit value is regularly accumulated, and then accurately determines whether a copy/falsification card is in use, and then blacklists it. When the blacklist card is swiped, the access control device deletes the content of the identification field, so that it can no longer be Use for the purpose of decommissioning.

DETAILED DESCRIPTION OF THE INVENTION The detailed description of the present invention is not intended to limit the scope of the invention, and the equivalents of the embodiments of the present invention should be included in the present invention. In the scope of patents.

In summary, this case is not only innovative in terms of space type, but also can enhance the above-mentioned multiple functions compared with the customary items. It should fully meet the statutory invention patent requirements of novelty and progressiveness, and apply for it according to law. This invention patent application, in order to invent invention, to the sense of virtue.

100‧‧‧Access card

101‧‧‧Identification information bar

102‧‧‧Swipe count column

200‧‧‧ access control machine

201‧‧‧Card Information Reading Module

202‧‧‧Blacklist comparison module

203‧‧‧ card blacklist

204‧‧‧Field writeback module

205‧‧‧Uploading module

300‧‧‧Access Control Module

301‧‧‧Blacklist generation module

302‧‧‧Database

303‧‧‧Blacklist download module

304‧‧‧Anomaly Detection Module

S201~S209‧‧‧Step procedure

1 is a schematic diagram of a module of a system for detecting and deactivating an illegal access card according to the present invention.

2 is a schematic flow chart of a method for detecting and deactivating an illegal access card according to the present invention.

The technical features, contents, and advantages of the present invention, as well as the advantages thereof, can be understood by the reviewing committee, and the present invention will be described in detail with reference to the accompanying drawings. The subject matter is only for the purpose of illustration and description. It is not intended to be a true proportion and precise configuration after the implementation of the present invention. Therefore, the scope and configuration relationship of the attached drawings should not be interpreted or limited. First described.

FIG. 1 is a schematic diagram of a system for detecting and disabling an illegal access control card according to the present invention, which includes an access card 100, an access control device 200, and an access control management module 300. The access control card 100 further includes an identification information column 101 and The number of times of card check 102. The access control device 200 further includes a card information reading module 201 for reading the identification information column 101 and the card number column 102 of the access card 100. The blacklist comparison module 202 compares whether the identification information column 101 conforms to the card blacklist 203. The bit writeback module 204 writes the number of card swipes to the swipe count field 102, and the upload module 205 identifies the information bar 101 and the card count field 102. The access management module 300 further includes a blacklist generation module 301, which generates a card blacklist 203, the database 302 stores the card blacklist 203, and uses the blacklist download module 303 to download the card blacklist 203 to the blacklist comparison mode. The group 202, the anomaly detection module 304 compares the identification information column 101 and the card number column 102 of the access card 100.

Please refer to FIG. 2, which is a method for detecting and deactivating an illegal access card according to the present invention. The flow chart of the method has the following steps: Step S201: When the access control machine senses the access card, the step S202: the access control machine reads the information of the identification information column of the access card, which includes the unique serial number of the access card and the key reading and identification. The number of times of the information and the number of credits on the number of times of card swiping, first determine whether the format and content are correct access cards; step S203: the access control machine compares the card blacklist, if the card is blacklisted, the access control machine writes back the access card The content of the identification information bar is such that the access control card cannot be used; step S204: if the access control card does not conform to the blacklist of the card, the access control machine will read the key in the identification information and perform the value on the number of times of card swiping, and then return Write to the card number field of the access card, and open the door; Step S205: The access control device updates the card card information, including the card swipe time and the access control number, and returns to the database of the access control management module for storage; step S206: access control mode The group performs abnormality detection; step S207: reading each card information with the same identification code in the database, according to the order of the time of the card, the comparison first The value of the last two card number fields is compared. Step S208: If the value of the number of times of card swiping is regularly accumulated, it represents a normal access card. If the number of times of card swiping is irregularly accumulated, it is determined that there is illegal access control. Card; and step S209: generating a blacklist of cards and downloading them to the access control machine. When the blacklist card with the identification information bar is read and recognized by the access control machine next time, the access control list of the blacklist of the card will be written back to delete the card identification. The contents of the field make it unusable.

The numerical comparison is based on the following logic: d=a(n)-a(n-1); Where a(n) represents the value of the subsequent number of credits, a(n-1) represents the previous number of credits, n=1, 2, 3, 4... to the latest, a(0) is the initial at the time of card issuance Value; when d=constant (>0), it means that only one card is used normally; and when d=0 or negative number, it means that there are multiple cards with the same identification code in use, which is an illegal access card.

The content of the access card read by the access control machine includes the unique serial number of the card and the identification information read by the key; wherein a certain field of the identification information area is read by the key, and is used as a card storage time field.

To sum up, this case is not only innovative in terms of technical thinking, but also has many of the above-mentioned functions that are not in the traditional methods of the past. It has fully complied with the statutory invention patent requirements of novelty and progressiveness, and applied for it according to law. Approved this invention patent application, in order to invent invention, to the sense of virtue.

100‧‧‧Access card

101‧‧‧Identification information bar

102‧‧‧Swipe count column

200‧‧‧ access control machine

201‧‧‧Card Information Reading Module

202‧‧‧Blacklist comparison module

203‧‧‧ card blacklist

204‧‧‧Field writeback module

205‧‧‧Uploading module

300‧‧‧Access Control Module

301‧‧‧Blacklist generation module

302‧‧‧Database

303‧‧‧Blacklist download module

304‧‧‧Anomaly Detection Module

Claims (2)

A system for detecting and disabling an illegal access card includes: an access card, wherein the access card further includes an identification information bar and a card number column; and an access control device, wherein the access control device further includes a card information reading The module reads the identification information column of the access card and the card number column, and a blacklist comparison module compares whether the identification information column conforms to a card blacklist, and a field writeback module is the number of times the card is swiped. Write the card number column, and an uploading module to identify the information column and the card number column; an access control module, the access control module further includes a blacklist generating module, which generates the card blacklist, a database stores the blacklist of the card, and downloads the blacklist of the card to the blacklist comparison module by using a blacklist download module, and the anomaly detection module is compared with the identification information column of the access control card and The number of times of the card is counted, and the number of digits of the current number of times of the card is regularly accumulated, and the access card is determined to be normal. If the number of digits in the number of times of the card is irregularly accumulated, the access card is judged. Illegal card, and the blacklist generation module generates the card blacklist; and the blacklist comparison module compares the access card, if the access card conforms to the card blacklist, the access control device writes back and deletes the access card The content of the identification information bar makes the access card unusable. A method for detecting and disabling an illegal access control card comprises the following steps: an access control system uses a card information reading module to read one of the access card identification information column and a card number column; one of the access control machines is black The list comparison module compares the identification information column with a card blacklist. If the identification information column matches the card blacklist, the field writeback module deletes the content of the identification information column, if the identification information column Does not match the card blacklist, the field writeback module will brush The card number is accumulated and written into the card number column and the door is opened; the uploading module of one of the access control devices uploads the identification information bar, the card number column and the card swiping time of the access card to one of the access control management modules. The access control module reads the record of the corresponding number of times of the card in the database having the same identification information column, and an abnormality detecting module compares the order of the time of the card, The value of the card number column; and if the number of digits of the card number column before and after the value is regularly accumulated, it is determined that the access card is normal; if the number of digits of the card number column before and after is irregularly accumulated, it is determined The access card is an illegal card, and a blacklist generating module generates a blacklist of the card and is downloaded to the access control device by the blacklist downloading module. When the identification information bar matches the blacklist of the card, the access card is When the access control device reads and recognizes, the access control card will be written back to delete the content of the identification field and cannot be used.