How to match the key chain when it is dropped?

1. If you remember that there is a row of numbers on the key chain, you can go directly to the key shop to buy one.

If you can't remember the number on the key chain, go to the hotel and ask for a spare key.

The core part of the access control system is equivalent to the CPU of the computer, which is responsible for the processing, storage and control of the input and output information of the whole system. And each access key chain has its own number, just remember the number.

Application of access control key in intelligent elevator control;

Also known as access control elevator, credit card elevator and IC card elevator, only authorized users can call the elevator and press the floor;

More and more related devices have been used in related intelligent residential quarters, and control circuits have been specially designed to control elevators, forming a proprietary elevator access control system.

Single-machine control access control means that one door is controlled by one machine, and there is no record, so it is directly controlled by the controller. It is characterized by low price, simple installation and maintenance, and no records can be found. At present, the latest offline access control can issue cards on the software side.

Permission information is directly stored in the user card, and the access control can verify the password, with various encryption methods, which greatly strengthens the security of IC card access control.

References:

Baidu Encyclopedia-Access Control