History of Locking and Unlocking Technology

Almost at the same time that private wealth was born, humans began to learn to hide, and each lock and every secret will be given a lock. The Chinese said that the role of the lock is to "prevent the gentleman from being a villain." Since ancient times, the development of locks has been a contest between two masters. For the time being, the purpose of invading theft of the money is thrown away. In terms of technology, the code is coded, the riddle is exhausted, the unlocker is decoded, and the mystery is restored. Two experts in the opposite direction of work, in the dark, each speculates on each other's minds; two sets of tools, one bright and one dark, using the highest craftsmanship in their era, constitute the oldest, longest, most mysterious one in human history. Field fights.

Coding and Decoding In the American Encyclopedia, locks are a type of locking device designed by people. It prevents unauthorised persons from easily releasing the lock in a safely locked state.
In order to prevent wind, beasts, and people, humans invented locks. In the long years, from rope locks to wooden locks, to metal locks and now the most advanced electronic locks, locks have gradually joined the principle of early bionics. The principle of leverage and the principle of coding, but the essential principles of its work have never changed. This is - coding and decoding.

Mechanical locks In ancient times, the original style of locks was only used to tie the ropes and knots of the items to indicate the owner's possession of the items. In the famous legend of ancient Greece, the prince Alexander of the Macedonian kings invaded the Arabian Peninsula and occupied Geldiion. In the center of the city's streets, there is an ancient chariot in the temple. The chariot is the famous "Goldios rope knot". According to the legend, the person who untied the knot is the ruler of Asia. Alexander could not solve it. Finally, he pulled out the sword and used the way of Alexander to cut the knot into two breaks.
It's hard to say that Alexander's way is to really open the knot, but today's car thieves, in the face of a strong steering wheel lock can not start, simply saw the steering wheel with a saw, they will not think, their grandfather Is it actually Alexander?
However, the origin of the locks did not begin with the kingdom of Alexandria. Experts from all over the world generally believe that there are two centers for the origin of locks: one is the two rivers and Egypt, and finally to Greece, Rome and even Western Europe, to the British Isles and then to the United States; the other is China, North Uploaded to North Korea, eastward to Japan, south to Vietnam and other places. All this change happened after humans had rooms and doors.
The initial definition of the door was only a rough cork - it gradually evolved into a stronger metal bolt, which was used in the mechanism to insert them in the lock. These devices used springs and reeds. The structural position was changed, and various types of locks were born. In order to open them, we need specific keys.
Early mechanical locking devices were created based on various mechanical principles. The function of the key is to make the corresponding locking mechanism of the lock change. In the process of unlocking (decoding), only when the key code and the lock code are consistently matched by the internal identification of the mechanism, the lock and lock can be made through the transmission mechanism. The tongue moves, releases the lock, and decodes smoothly.
The safety performance of mechanical locks relies on two mechanical principles, one is to rely on the obstacles fixed inside the lock to prevent the fake key from entering and rotating, and the second is to use one or more movable limit objects to be installed in the lock. The key determines whether it is in the previously scheduled position. The more the number, the more complex the coding and the corresponding improvement in safety.
These principles in mechanical locks have been born for thousands of years and are still being improved. The development of lock-key mechanical structure coding is still with us today. Although more and more electronic components are being used for new locks, mechanical door locks are sure to continue in design. Although the cost of electronic equipment has been greatly reduced today, with the development of material technology, electronic locks have to completely replace mechanical locks, and it takes quite a long time.

The electronic lock electronic lock is an electromechanical integrated lock that adopts electronic circuit control and uses electromagnet or satellite motor and lock body as the execution device. Compared with the traditional mechanical lock, the electronic does not use the metal key, and the confidentiality and precision are very large. improve.
The idea of ​​the invention of electronic locks originated from the automatic machinery invented in ancient times. For example, the automatic automatic door of the ancient Greek mathematician Herron, the wooden cows of Zhuge Liang in ancient China, driven by gravity or steam pressure, the most widely used is used in ancient tombs. Underground institution. The birth of the electronics industry made it possible to drive machinery with a small amount of electricity, so there was a leap forward in electronic locks.
According to the "Yongle Grand Code", the door of the Afang Palace was built with magnets to inspect the iron weapons. If someone wants to be unfavorable to Qin Shihuang in iron, then they will be stagnation in front of the door.
Modern magnetic locks were introduced in the mid-1990s. Britain, Austria, and Japan were the first countries to develop magnetic locks. To date, magnetic coding and marble structures have been skillfully combined in the structure of magnetic locks.
Taking the most common type of magnetic lock as an example, in the entire lock cylinder, 360 degrees are distributed with several magnetic marbles - in the traditional mechanical marble lock, the marbles are pushed to the defined position by the tooth on the key, thereby making The lock cylinder rotates to remove the obstacle. In the latest magnetic lock, the key turns into a bare metal stick, and the magnetic point buried inside helps the marble reach the limit.
Depending on the division and the magnetic pole of the magnetic marble in the lock cylinder, the magnetic point of the corresponding magnetic pole is buried in the corresponding position in the key. When the key is fully inserted, the magnetic ball inside the lock is either attracted or repelled, just in a position that is limited to open, and the lock cylinder is thereby rotated and opened.
In the past mechanical lock cylinders, the earliest single-sided marbles had a narrow range of divisions, and there were manufacturing errors that could easily be dialed one by one. The cross lock that appears later is easy to be stressed by the shape of the keyhole determined by the key, and is easily violently opened by the opener with a high-strength tool. But the magnetic lock avoids all this. Only with a 7×7 dot matrix calculation, there are 7 positive and negative different magnetic poles in any of the 49 points, and there are hundreds of thousands of permutation coding methods. If the opener does not use tools such as magnetic probes, mathematically, it is almost impossible to implement the technology.
However, as a famous ghost in the history of locks, Alexander once again possessed the soul. People quickly discovered that in a carry-on item, a small lighter can easily create a temperature that demagnetizes the magnetic ball. The high-temperature treated magnetic marble loses its magnetic properties and the difficulty of opening is also greatly reduced.
This is just a small, simple episode in the development of modern locks and the opening of technology. Throughout the world, from the government to the private sector, from the sun to the illegal, the struggle for the invention of locks and the unlocking of technology has not subsided. No one in the industry is plagued by this invisible war. And this torture will continue.

China's ancient locks have a long history of Chinese locks. According to the unearthed cultural relics and historical documents, the development of locks has a history of 5,000 years. In the Neolithic period, the "bone fault" and "stone fault" of Yangshao culture were the key shapes of the lock key. "觿", the ancient axe made of bones, is the prototype of the ancient key. Therefore, "觿" is one of the oldest locks in China.
Ancient locks were first called oysters, closures, keys, chains, and crickets. Early bamboo and wood structures originated from the bolts. Spring and Autumn and the Warring States to Luban in the wooden lock set up the Tang Ao organs, to the Eastern Han metal reed structure lock (also known as the groove lock). When entering the Tang Dynasty, the locks were mostly gold, silver, copper, iron and wood. Since the Ming Dynasty, locks have been divided into four categories: wide locks, Citi locks, jewelry locks, and torture locks. We can also add a password lock to this category.
The so-called "wide lock" means the horizontal lock. Since the Tang Dynasty, Guangsuo has been widely used in doors, boxes, kitchens, cabinets, etc. There are more than one hundred kinds.
The so-called "Citi lock" is the meaning of fancy locks. Flower fancy, flagpole logo.
The so-called "jewelry lock", commonly known as "accessory lock", "long life lock", "100 guarantee lock", etc., the lock body on both sides engraved with eye-catching characters or patterns, expressing people's hope for a better life.
The so-called "criminal lock" is a punitive special lock that evolved from ancient wooden shackles. Now it is made of metal handcuffs, ankles, fingernails, and so on.
The so-called "password lock" is a picture written on 3 to 7 rounds to form a password. Turn the small wheel to the set combination when it is turned on.

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