Smart password lock is a kind of lock product commonly used in the modern home door and window industry. It is generally composed of two parts: an intelligent monitor and an electronic lock. The two are placed off-site, and the smart monitor supplies the power required by the electronic lock and receives it. The alarm information and status information; the two support each other to ensure the normal use of the smart password lock, you know what is the working principle of the smart password lock? Xiao Bian reminds you that if you want to understand the working principle of smart password lock, you have to analyze and understand the working principle of each component.
The components of the intelligent monitor:
The intelligent monitor is composed of a single chip, a clock, a keyboard, an LCD display, a memory, a demodulator, a line multiplexing and monitoring, an A/D conversion, a buzzer and the like. Mainly complete the communication with the electronic lock, intelligent analysis and security monitoring of communication lines.
How the intelligent monitor works:
The intelligent monitor is always in the receiving state and receives the alarm information and status information from the electronic lock in a fixed format. For the alarm information, the sound and light alarms are immediately sent through the LCD display and the buzzer; for the status information, it is stored in the memory and compared with the historical state of the electronic lock before this time, and the trend is changed to predict the future. The status changes, and the corresponding information is provided to the duty officer through the LCD display for decision making. While the intelligent monitor establishes communication with the electronic lock, the A/D converter monitors the change of the supply current flowing through the communication line in real time, effectively preventing the damage caused by human factors and ensuring the smooth communication line.
Electronic lock components:
The electronic lock is also based on the 51 series single chip microcomputer (AT89051), with the corresponding hardware circuit, completes the setting, storage, identification and display of the password, drives the electromagnetic actuator and detects the driving current value, and receives the alarm signal sent by the sensor. , send data and other functions.
The working principle of electronic lock:
The MCU receives the entered code and compares it with the password stored in the EEPROM. If the password is correct, the electromagnetic actuator is unlocked; if the password is incorrect, the operator is allowed to re-enter the password, up to three times; if three times If it is not correct, the MCU will alarm the intelligent monitor through the communication line. The single-chip microcomputer sends the unlocking operation and the driving current value of the electromagnetic actuator as the status information to the intelligent monitor at this time, and also sends the alarm information received from the sensor interface to the intelligent monitor as the basis of the intelligent analysis.
Therefore, the working principle of the smart password lock is actually achieved by the working principle of the intelligent monitor and the electronic lock. Do you understand the composition and working principle of the smart password lock?
Concerned about surprises
Label: Basic components and principles of smart password lock
Previous: Geomembrane anti-seepage construction technology is favored Next: What are the requirements for Tower Crane installation process standards?
Luffing Jib tower cranes are a popular choice among leading construction and rental companies worldwide. Particularly well-matched to the construction of high-rise buildings on urban jobsites, luffing jib tower cranes are designed to work together in a wide variety of configurations efficiently and safely.
Luffing Jib Tower Crane,Luffing Jib,Luffing Crane,Luffing Jib Crane
Jinan Shanghangda Machinery Co., Ltd. , https://www.shdtowercrane.com