电子门锁机械原理（Mechanical principle of electronic door lock）.doc

电子门锁机械原理（Mechanical principle of electronic door lock） Electronic lock introduction There are many kinds of electronic locks. In large ways, there may be ten kinds, such as digital locks, fingerprint locks, card locks, and magnetic card locks. Biological locks, etc.. But can talk about some of the more practical or popular, or push-button electronic locks. This is an electronic lock mode of operation is similar to the key telephone, through the keyboard digital button in order to enter a password, if the password is the same password and internal agreement, it outputs an electrical signal to drive an electromagnet or a small motor will open a latch, complete the unlocking process. According to relevant data, the research of this kind of lock has been started since 30s, and has already been applied in some special places. The purpose of studying the lock is to improve the security of the lock, because the key quantity of the electronic lock is very large, so that the lock can be matched with the mechanical lock, so as to avoid the problem that the key is imitated. In the premise of high security, its another feature -- without a key is appreciated by more and more people. Because most of the keys that people carry have become cumbersome, and electronic locks only remember a set of passwords, without carrying a metal key, to relieve peoples worries. It is also the power of many inventors to study the popularity of electronic locks. After entering the 80s, with the emergence of electronic lock integrated circuits, the size of electronic locks reduced, reliability improved, cheap products began to appear. The practicality already has, may say already had the impact machinery lock Market condition. But contrary to expectations, the market is still a mechanical lock of the world, the status of mechanical locks, not only did not waver, but also developed. The key was not reduced. The use of intelligent electronic locks is limited to a certain extent, there is no obvious pr