Smart locks will be the future direction of smart homes?
The history of locks is very long and is basically born at the same time as private ownership. After thousands of years of development, locks have evolved from simple latches and wooden locks to the now common spring locks, electronic locks, and so on. I believe that with the advancement of technology, more and more secure locks will continue to emerge. So at this stage, what are the locks we can choose? Many locks have been eliminated due to their low security, and they are likely to be seen in museums. Nowadays, the more common locks are divided into mechanical locks and smart locks. So what about choosing a mechanical lock or a smart lock?
Comparison of advantages and disadvantages between mechanical lock and smart lock
What are the advantages of mechanical locks?
1, the operation is simple, similar to the dialing of the old telephone. For single-axis operation, enter the password for a half turn and reverse the half circle to unlock. Short operating time.
2, the amount of password is large, there are more than 3.25 million sets of actual passwords, and the full array of passwords, you can choose freely, there is no limit.
3, can automatically destroy the code when unlocking, leaving no traces. It is also impossible to test the password.
4, the number of passwords can be freely set, simple and random. Currently the maximum 6-digit password.
5, full mechanical structure, no power supply, can adapt to a variety of harsh places.
6, small size, and ordinary door locks are almost the same.
7. It is suitable for use in the lockout mechanism of the vault door, gun cabinet, safe, and important places.
What are the disadvantages of mechanical locks?
First, the lock body material is poor, and the resistance to violence is poor;
The traditional mechanical lock anti-destructive opening time is too short, the lock main tongue pressure test is not closed, so you will find that when you forget to bring the key, the master who unlocks the door usually has a little force, and your door is opened by "jingle", At the same time, the lock cylinder is scrapped;
Second, the key switch is more secure;
Because it is a mechanical blocking type, there is often a case where a key opens N doors, that is, coupling, strong coincidence, and even a key to open the N door. In this case, it is estimated that many friends have encountered it;
Third, strong reproducibility;
If your key is lost, people can copy it at any time, and they can give the thief a chance to “go to the door†at any time. Even without a key, the thief can use the relevant tools to solve the door lock easily.
A two-dimensional line scanner, comprising a scanner body and a bracket, characterized in that: the scanner body is composed of a handle, an upper cover and a rear cover respectively fixed at the front and rear ends of the handle, and the front side of the handle is The interior is provided with a light-transmitting part, a light-guiding part, a main board, and a key board. The light-guiding part is also provided with a dust-proof mirror frame embedded with a dust-proof lens at the bottom. The main board is plugged and fixed with copper on one side. A two-dimensional decoding board is installed and fixed on the copper column, and a two-dimensional code component is connected below the two-dimensional decoding board. On the button position, the rear side of the handle is internally provided with a wire clip assembly formed by the upper half of the wire clip and the lower half of the wire clip. The wire clip assembly is placed on the corresponding square groove inside the back cover, and the wire The wire on the clip assembly extends to be connected with the main board, the bracket is composed of a bracket rod, a bracket head and a bracket base respectively fixed on the top and bottom of the bracket rod, and the bracket rod is composed of a left bracket rod and a right bracket rod. The center of the bracket base is provided with a circular groove which is convenient for the bracket rod to be inserted and connected, and the scanner body is hung on the bracket head through the handle.
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