Electronic door lock refers to the use of programmable memory and data reading device, the key is difficult to copy. There is a 3.5×3.5mm special electronic chip in the key, which stores a specific password. When the key is inserted into the lock hole, the code is sent to the memory in the lock, and a magnetic field is generated at the same time, and a voltage is generated in the coil on the chip, which is used as a power source for unlocking. If the code in the key matches the lock, the lock is opened .
The lock code can have a combination of 10 to the 13th power or more, so it can be used with confidence in the next few decades. But the most practical or popular one is the push-button electronic code lock.