What is the principle of hotel electronic lock? What is the working principle of hotel electronic lock? Hotel electronic lock workflow description. Electronic locks are more commonly used in hotels. As the type of centralized management locks, the work process of hotel electronic locks is completely different from that of ordinary household electronic locks. The common hotel electronic locks are fingerprint locks and IC card locks, among which the proximity card lock is the most popular. In this paper, the hotel uses sensor locks as an example to introduce the principle of hotel electronic locks in detail.
The hotel uses a sensor card electronic lock is usually unlocked through the room card, available within a specified time, controlled by the central computer to activate the use of the card, the computer is installed with the hotel lock management system software, can issue cards, authorization information, time and other operations.
The card reader on the door lock (non-contact) continuously seeks the card. When the room card is near the door lock, the card search succeeds and reads the data in the card. When the room is opened, a certain field in the card is set as a specified. The value, if the value read out when the door was opened is not correct, it is considered that the room has not been opened yet. It is impossible to open the door.
Among them, there is a coil in the hotel's electronic door lock sensor, which is always oscillating. It is equivalent to the primary coil of the transformer, and there is also a coil in the card, which is equivalent to the secondary coil of the transformer. When the two coils are close together, the coupling generates electric current. Card power supply, coupled with the past query signal, card response, meet the conditions to open the door.
IC card door lock (system) is mainly composed of five parts: front desk management computer, IC card, IC card reader, door lock, controller. The front office management computer is responsible for writing IC card operations, creating cards with different functions and permissions according to different user types (such as guest cards and management cards, which can open many doors), and managing the hotel's access control system. Statistics unlock record.
The IC card generally includes a user memory, a protection memory, and an encryption memory. The user memory stores key information such as hotel codes, identification codes, control codes, and unlock records. Stored in the encryption memory programmable passwords and error counters. The change of data in the user memory can only be performed after entering a secure programmable password.
The IC reader can write the information in the read card under the control of the front desk computer. The front desk is external and used for issuing cards. The lock is built-in, reads the card's function permission information.
The door lock itself consists of an electrical control mechanism and a mechanical actuator. The electrical control mechanism is a single-chip microcomputer system that can be programmed at any time by a function card or controller. During normal operation, the information in the inserted IC card is read and recognized, and the door lock is controlled. If verified, the micro-motor in the lock cylinder is controlled to perform the unlock operation. The mechanical part consists of a lock cylinder, an outer lock body and an inner lock body. The lock cylinder includes a lock tongue and a safety tongue and a series of mechanical structures in which the micromotor is embedded. The external lock body includes a handle, a clutch mechanism, an IC reader/writer, an electrical control board, and indicator lights.
The controller is mainly used for the communication between the door lock and the front computer, writes the computer information or extracts the information in the lock.
Since the magnetic card sensor lock is easily copied, it is gradually abandoned. Because the IC card lock has encrypted information and is difficult to copy, it has become the mainstream configuration of hotel electric locks.
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