Promotion Department of Shenzhen Huahai Smart Card Co., Ltd.

Company name: Shenzhen Huahai Smart Card Co., Ltd.
Contact person: Li Dongzhi
Contact number:
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Address: Baoan, Shenzhen Shenzhen Huahai Smart Card Co., Ltd. specializes in production, card system integration, card reading machine manufacturing, and production and sales of attendance systems. The annual production capacity has reached 100 million cards, making it one of the largest and strongest card printing enterprises in South China.
Card, card, D card is a read-only contactless card. It is powered by the induction of the card reader and reads out the unique card number stored in the chip. Passivity and contact-free are the two most prominent features of the chip. Contactless cards, cards, and D-cards have outstanding advantages such as easy operation, fastness, and reliability and have been widely used.
(1) Main features of card, card and D card:
The carrier frequency is (r) or. (r)
The data encoding in the card adopts phase shift keying with strong anti-interference ability Method
The data transmission rate from the card to the card reader is.(r) or.(r)
The data storage adopts r. The data storage time exceeds the year. The data storage capacity is co-located including manufacturer, issuer and user codes.
The card number cannot be changed after it is written before the card is blocked, absolutely ensuring the uniqueness and security of the card number
(2) Types of cards, cards, and D cards:
D thick card: thickness. The size of the standard card is currently the most economical RF card with a D number and a portable hole for screen printing text information
Standard thin card: thickness. The size of the standard card can be offset printed, screen printed, and printed Photo
Non-standard thin card: thickness. The size of standard card can be offset printing, screen printing, and photo printing
(3) Card, card, D card application scope:
Non-contact D The card can be mainly used in identity recognition and addressing control such as access control, security, attendance, and other fields. It can also be extended to tickets and discount cards in public places such as exhibitions, parks, hotels, restaurants, etc. As well as many fields such as logistics, electronic labels,
anti-counterfeiting marks, one-time tickets and other fields in the production process, postal parcels, air and rail transportation, product packaging, transportation and other departments.