ID access control and IC access control systems are similar but different. In fact, the scope of use of both is similar, but IC access control has encryption function and large storage capacity. It is widely used in card and membership card, while ID card is a read-only card. , Widely used in channel access control and parking lot.
Comparing the two systems, the differences are as follows:
1. Security: IC access control uses IC cards, and ID access control uses ID cards. The security of IC cards is much greater than that of ID cards. The card number in the ID card is read without any authority and is easy to imitate. The reading and writing of data recorded in the IC card requires corresponding password authentication, and even each area in the card has different password protection to fully protect data security. The password for writing data in the IC card and the password for reading data can be changed. Setting it differently provides a good hierarchical management method to ensure system security.
2. Recordability: ID cards cannot write data, and the recorded content (card number) can only be written once by the chip manufacturer. The developer can only read the card number and use it, and cannot formulate new number management according to the actual needs of the system. system. IC card can not only read a large amount of data by authorized users, but also can write a large amount of data (such as new card number, user authority, user information, etc.)
3. Storage capacity: ID card only records the card number; while IC card (such as Philips mifare1 card) can record about 1000 characters.
4. Offline and network operation: Since there is no content in the ID card, the authority of the card holder and the operation of the system function are completely dependent on the support of the computer network platform database. The IC card itself has recorded a large amount of user-related content (card number, user information, authority, consumption balance, etc.), which can be completely separated from the computer platform to realize the operation mode of automatic conversion between networking and offline, and can be used on a large scale. Less wiring required.
5. Extended application of one card: ID card has no records and no partitions, so it can only rely on network software to process the information of each subsystem, which greatly increases the dependence on the network; if the user wants to add function points after the completion of the ID card system , you need additional wiring, which not only increases the difficulty of engineering construction, but also increases unnecessary investment. Therefore, using ID cards as a system makes it difficult to expand the system and realize a real all-in-one card. The IC card storage area itself is divided into 16 partitions, each partition has a different password, and has independent management functions for multiple subsystems, such as the first partition for access control, the second partition for consumption, and the third partition for employee attendance and so on. Fully realize the purpose of one card, and can achieve a completely modular design. Even if the user wants to add function points, he does not need to rewire, only need to add hardware and software modules, which is convenient for the IC card system to be upgraded and expanded at any time in the future. Reduce duplication of investment. For example, an ID card one-card system was established in a community in Shenzhen, but due to the above-mentioned drawbacks of the ID card system, the system could not be put into daily use, so the system had to be completely abolished, and the IC card one-card system was adopted later.
Author:Written by Ms.Vivian He from S4A INDUSTRIAL CO.,LIMITED
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