Year1
- 使用次数：
- 10000次
- 使用寿命：
- 10年
- 是用范围：
- 酒店 门禁
- Contact person: Li Dongzhi
- Contact number
- :
- Address: Songbai Lubao, Shiyan Town, Baoan District, Shenzhen City Road Industrial Zone Building
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- The card is a contactless card, also known as a radio frequency card. It consists of a chip and an induction antenna, and is packaged in a standard card. The chip and antenna do not have any exposed parts. It is a new technology developed in the world in recent years. It successfully combines radio frequency identification technology and card technology, ending the problem of passive (no power supply in the card) and contact-free. It is an important step in the field of electronic devices. Big breakthrough. The card is placed close to the surface of the reader and writer at a certain distance (usually 100 Hz), and the data reading and writing operations are completed through the transmission of radio waves.
- Reading and writing operations are completed through radio waves between the contactless card and the card reader. The communication frequency between the two is 3. The non-contact card itself is a passive card. When the reader reads and writes the card, the signal sent by the reader is superimposed on two parts: one part is the power signal. After the signal is received by the card, it is combined with its own/ Generate an instant of energy to supply the chip to work. The other part is the command and data signals, which instruct the chip to complete the reading, modification, storage, etc. of data, and return signals to the reader and writer to complete a read and write operation. The reader/writer is generally composed of a microcontroller, a dedicated intelligent module and an antenna, and is equipped with communication interfaces, printing ports, / ports, etc., so that it can be used in different fields.
- Contactless smart card internal partition
- Contactless smart card is divided into two parts: system area user area ()
- System area: composed of card manufacturers and system developers and card issuers Institutional use.
- User area: used to store cardholder related data information.
- 3. Compared with contact cards, contactless cards have the following advantages:
- (1) High reliability. There is no mechanical contact between the contactless card and the reader, which avoids the need for contact reading. Various failures caused by writing. For example: failure caused by rough card insertion, insertion of non-card foreign objects, poor contact caused by dust or oil. In addition, there are no exposed chips on the surface of the contactless card, so there is no need to worry about chip falling off, electrostatic breakdown, bending damage, etc. It not only facilitates card printing, but also improves the reliability of the card.
- ⑵Easy to operate
- Due to non-contact communication, the reader can operate the card within the range, so there is no need to insert or remove the card, which is very convenient for users to use. Contactless cards have no directionality when used. The card can pass over the surface of the reader in any direction to complete the operation, which greatly improves the speed of each use.
- ⑶Anti-collision
- Contactless cards have a fast anti-collision mechanism that can prevent data interference between cards. Therefore, the reader can process multiple contactless cards at the same time. This improves the parallelism of the application and virtually increases the speed of the system.
- ⑷ Can be suitable for a variety of applications
- The serial number of the contactless card is unique. The manufacturer has solidified the serial number before the product leaves the factory and cannot be changed. A two-way verification mechanism is used between the contactless card and the reader/writer, that is, the reader/writer verifies the legitimacy of the card, and the card also verifies the legitimacy of the reader/writer.
- ⑸ Good encryption performance
- The contactless card consists of a chip, an induction antenna, and is completely sealed in a standard card with no exposed parts. The reading and writing process of a contactless card is usually completed by radio waves between the contactless card and the reader.
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- Card/(/Fudan Card):
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-, Working frequency:
-, Storage capacity: bytes, individuals Sectors, blocks per sector
-, protocol standards
-, erasing and writing life: greater than, times
-, data storage time: years
-, application scope: It is widely used in the field of all-in-one cards.
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- Scope of application of the original imported Philips card/card:
- The original imported Philips card/card is suitable for corporate/campus all-in-one card, bus stored value card, and highway toll collection due to its short sensing distance. , parking lot, community management, hotel, pastry, food, catering membership management, etc.
- Zhongda smart card manufacturer specializes in the production of campus cards. It is a leading smart card manufacturer in China and a ten-year-old brand card manufacturer, including card printing, campus card, campus card, campus smart card, campus card, campus dining card, Yangchengtong Campus card, university campus card, middle school campus card, primary school campus card, campus card - campus card card supplier - campus smart card manufacturer - campus card manufacturer - campus card supplier, student ID campus card, proximity campus card, campus stored value consumption Card, campus management card
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- Company name: Shenzhen Huahai Smart Card Co., Ltd.
- Contact person: Li Dongzhi
- Contact number
- :
Address: Building, Baolu Industrial Zone, Songbai Road, Shiyan Town, Baoan District, Shenzhen City
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