OFweek smart home network news lock has a very long history, is basically born with the private ownership system. After thousands of years of development, locks have evolved from simple latches and wooden locks to the now common spring locks and electronic locks. It is believed that as technology advances, more secure locks will continue to emerge. So at this stage, what locks can we choose? Many locks have already been eliminated due to their low safety, and they may be seen in museums. Nowadays, the more common locks are mechanical and smart locks. So in the end choose mechanical lock or smart lock? Comparison of the advantages and disadvantages of mechanical locks and smart locks What are the advantages of mechanical locks? 1, simple operation, similar to the old telephone dialing. For single-axis operation, input the password half circle and reverse the half circle unlock. Short operating time. 2. There is a large amount of passwords. There are more than 325 million actual passwords, and all passwords are arbitrarily set. There are no restrictions. 3, automatically destroy the code when unlocked, leaving no trace. Can't try passwords either. 4, the number of passwords can be set freely, simple and random. The current maximum 6 passwords. 5, full mechanical structure, no power, can adapt to a variety of bad places. 6, small size, almost the same with ordinary door locks. 7. It is suitable for the locking mechanism of vault doors, firearms cabinets, safes and important places. What are the disadvantages of mechanical locks? First, the lock body material is poor, poor anti-violence; The traditional mechanical lock has a destructive opening time that is too short, and the main tongue pressure test of the lock is not closed, so you will find that when you forget to bring your key, the master who unlocks the door will usually make a little effort and your door will be opened with a “jingle bellâ€. At the same time, the lock cylinder is scrapped; Second, the safety of the key switch is worse; Because it is the use of mechanical blocking, often a key to open N doors, that is, coupling, strong coincidence, and even a key to open N doors. In this case, it is estimated that many friends have encountered; Third, strong replicable; If you lose the key, people can pick it up and copy it at any time. At any time, they can give the thief a chance to “get in.†Even without a key, a thief can easily unlock the door lock using professional tools. Why choose smart lock First, intelligence Mass storage of fingerprints and password information. The initial user can autonomously add or delete user information. When the user needs to add a starter license for more than one person, he only needs to input the fingerprint or password information of the other person into the system. Many fingerprint locks now also have intelligent derivative security features. When the lock body is damaged by external violence, it immediately sounds a warning and directly links the alarm. Second, security The door lock opens more securely. Unlike mechanical locks, smart locks require the use of a fingerprint or password to open the door. His collection is outside the door and the central control is inside, so there is no need to worry about the vandalism. Fingerprint lock adopts biometric technology. It uses unique physical or behavioral characteristics of the human body to identify the identity and has uniqueness. Third, convenience For young people who love fashion technology, smart locks greatly enhance their experience of smart home life and become the first port to open smart homes in the future. Is smart lock absolutely safe? 1. The alarm system cannot be temporarily connected to the security system of the community or the police station and cannot be automatically alarmed. This function needs to be improved for the more demanding security units. In addition, not every lock has this function and requires user customization. 2, remote unlock, when no one is at home, if you accidentally touch this feature will open the door, and he did not pay attention, the consequences could be disastrous. 3, button remote unlock, can not be connected to the Internet, only within a certain range through the control button to control the door lock. 4. Since the voice prompts are recorded in a unified manner, their voices are too mechanized and their mobility and intimacy are not strong. In addition, the general voice operation prompts only Chinese and English. This function is ineffective for the elderly and children who do not understand the two languages. 5, input and delete fingerprints need to operate more steps, the program is too much trouble, convenience is not enough. However, the complicated operation is also for the sake of safety. For the time being, it is acceptable. If it is possible to improve the safety factor while simplifying the operating procedures, it would be better. to sum up: There is no absolute safe lock in the world. The anti-unlocking and unlocking technologies are like spears and shields. Both are constantly improving. The mechanical lock is more practical and the price is lower. The smart lock is the development direction of modern social locks, and it is safer and easier to operate. However, there are also some disadvantages. When consumers choose, they need to be considered in many ways. Choice. Surface Mount D-Sub Connectors D-SUB SMT Right Angle & Through Hole,Surface Mount D-Sub Connectors,Standard Surface Mount D-Sub Connectors,High Density Surface Mount D-Sub Connectors ShenZhen Antenk Electronics Co,Ltd , https://www.antenk.com
Features of Antenk Surface Mount D-Sub Connectors
Available in 9 and 25 position standard D-Sub.
Available in 15 position female High Density.
Metal shell provides shielding..
Plug shells have indents to provide grounding and additional retention.
Built in Board Locks add mechanical stability to pcb.
Materials of Surface Mount D-Sub Connectors
Shell: Steel-nickel plated
Insulator: Nylon 6T-UL94V-O, black (260°C process temp)
Contacts: Male pins: Phosphor bronze | Female pins: Phosphor bronze
Plating:Gold flash (mating area) | Tin (solder tails)
Board Locks: Brass-Nickel plated