Long-distance access control automatic attendance recognition system and system characteristics

Long-distance access control: The reading distance should not be too far away or too close. People are required to carry the card to enter the sensing range to read the card instead of the person who has been reading the card within the scope of the reading card for a long time. However, the time can not be determined. Time is near. The best distance is 1 meter away from the door and a distance of 0.5 meters from the left and right (carrying cards can be randomly placed in pockets and purses). People can walk from a distance just to the front of the door and read the card to a position about one meter away. Unlocking, people push the door in, just the right time, do not stay in front of the door, at one go.

Time and Attendance Use: The distance between readers should not be too far away, nor too close: The distance between readers is too far, people pass by without attending the attendance, resulting in inaccuracy, too close reading distances, and dead ends of reading cards. , resulting in no read card, missing reader card. At the same time, the card should not be subject to human shields and some clothing materials, causing readers to miss the card. In actual projects, the attendance at the peak of the attendance is crowded. Once several people are crowded into the attendance point, even within the range, the card may not be read. . This loss in the actual project is relatively high, causing the system to be unreliable at all, and is often found in passive cards. Of course, cheap price is its advantage, but if it cannot meet the requirements, this advantage will become a disadvantage.

Vehicle access management: antenna buried (buried), reader access gate or security room, the card can be placed in the car pocket, can be attached to the inside of the license plate; the antenna is made into the form of a billboard, the card is attached to the glass window; low frequency Strong penetration, car shielding effect. Vehicles quickly exit the entrance without parking card.

Long-distance recognition system features long-distance: Effective recognition distance is adjustable from 0 meters to 80 meters.

The recognition direction can be adjusted: the signal emission angle can be adjusted from 60 degrees to 360 degrees to meet different requirements of orientation and omnidirectional.

Extremely high anti-collision: Adopt multiple anti-collision schemes, reliable frequency division multiple access and time division multiple access design, and can identify more than 200 different RFID cards at the same time.

High speed: SuperRFID can still read electronic tags reliably at a speed of more than 200 kilometers per hour.

Intelligent: Two-way high-speed data exchange can be implemented between RFID and transceivers to enable flexible application and ensure data security.

High reliability: adapt to industrial and mining working environment (-40°C-85°C), pass national coal mine safety certification, waterproof and anti-impact.

Ultra-low power consumption: The peak emission power is only 1mw, which is healthier and safer.

Frequency band selection: Globally open ISM microwave band, no need to apply for and pay.

High immunity to interference: There are no special requirements for various interference sources on the site.

Highly integrated: easy to install, built-in antenna does not require an external antenna or coil.

High security: Adopting Hideo's encryption algorithm ensures absolute security of data transmission.

Circularly Polarized Antenna Design: A circularly polarized antenna design is used to ensure reliable reading and writing regardless of the angle at which the electronic tag is placed.

Development Interface: Provide SDK development kit, interface function API to facilitate customers to develop their own characteristic applications.