According to the input password method, it can be divided into the following categories:
1. Push-button electronic lock: use the keyboard (or combination button) to input the unlock password, which is convenient to operate. Internal control circuits often use an electronic lock ASIC.
2. Dial-type electronic lock: Use the mechanical dial switch to input the unlock code. Many push-button electronic locks can be converted into dial-type electronic locks.
3, electronic key electronic lock: use the electronic key to input (or as) unlock password. The electronic key is an important part of the control circuit. The electronic key can be composed of a component or a unit circuit composed of components, and is formed into a small handheld unit. The connection between the electronic key and the main control circuit can be various forms such as sound, light, and electromagnetic.
4, touch-type electronic lock: use the touch method to enter the unlock password, easy to operate. Compared with the push button switch, the touch switch has a long service life and low cost, so the electronic lock control circuit is optimized.
5. Bio-characteristic electronic lock: The human biometrics such as sound and fingerprint are input as passwords, and the computer performs pattern recognition control to unlock, and the intelligence is quite high.
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