An electronic lock is an electronic product that controls the circuit or chip operation (access control system) through password input, thereby controlling the closing of the mechanical switch and completing the unlocking and locking tasks. Nowadays, the widely used electronic door lock is realized by programming with the chip as the core. The main components are: single-chip, clock, keyboard, LCD display, memory, demodulator, line multiplexing and monitoring, A / D conversion, buzzer and other units.
There are many types of electronic locks, there are simple circuit products, and there are also cost-effective products based on chips. Nowadays, the widely used electronic password lock is realized by programming with the chip as the core. The electronic lock is in the field of security technology prevention. The electronic password lock with anti-theft alarm function replaces the traditional mechanical password lock, which overcomes the shortcomings of the mechanical password lock password and poor security performance, making the password lock technically and in performance. Both have greatly improved one step.
Nowadays, more electronic locks are centered on the 51 series single-chip microcomputer (AT89051), equipped with corresponding hardware circuits, complete the setting, storage, identification and display of the code, drive the electromagnetic actuator and detect the driving current value, and receive the sensor. Alarm signal, send data and other functions.
The one-chip computer accepts the typed code and compares it with the code stored in the EEPROM. If the code is correct, the electromagnetic actuator is unlocked; if the code is incorrect, the operator is allowed to input the code from the beginning, and can input up to three times; If it is not correct, the MCU will alarm the intelligent monitor via the communication line. The single-chip microcomputer sends the unlocking operation and the driving current value of the electromagnetic actuator to the intelligent monitor as the status information at the moment, and sends the alarm information from the sensor interface to the intelligent monitor as a basis for intelligent profiling.
Wireless electronic locks. Non-door lock electronic locks can be used for transportation, storage, warehousing, cash trucks, refrigerated trucks, drug delivery, tobacco transportation, etc. For example, it is used for the door of the cash transport truck, the manhole cover of the special vehicle and the door of the warehouse to ensure the safety of the goods being transported or guarded and to avoid theft. The electronic lock uses a mechanical lock body to contact the related skills of the Internet of Things, and the lock body has a built-in wireless transceiver module. When the lock body is turned on and off, the wireless transceiver module transmits the open and close lock signals to the monitoring host for long distance. If the unlock signal received by the monitoring host appears in the abnormal period, the signal is discriminated as a pirate and bedding signal, and the monitoring host immediately generates an alarm message so that the relevant personnel can timely dispose of it to avoid financial loss.
The core components of the electronic lock: motherboard, clutch, fingerprint collector, password technology, microprocessor (CPU), intelligent emergency key. As a fingerprint lock, the most important thing is the algorithm chip, that is, the heart is better. Your mechanical part is better. If you have a higher degree of recognition, you can open your fingerprints. What use is there?
Second, no matter what lock, its essence is still a mechanical product. Fingerprint lock is a model for transforming traditional industries with modern high technology. Its core technology is first of all grasped by mechanical technology. Mechanical technology mainly consists of the following five aspects:
1. The reasonable design of the front and rear panels, that is, the appearance, is a sign that is significantly different from similar products. The more important internal structure layout directly determines the stability and function of the product. This process involves many aspects such as design, mold making, and surface treatment. Therefore, the more manufacturers of styles, the relative development and design capabilities are stronger and the stability is better.
2, lock body. That is, the mother of the bolt that can be connected to the door. The quality of the lock directly determines the life of the product. This is the most core technology in mechanical technology, and it is also the lifeblood of fingerprint locks. It is also the most difficult problem in the industry. 95% of the existing production units can not solve the problem, mainly through outsourcing. A strong manufacturer has the ability to design and develop locks. Therefore, the lock body is the core component that truly reflects the technical level of the manufacturer, and is also the core technology of the entire fingerprint lock.
3. Motor. The motor is the drive. Just like the computer's driver software. It is the connection equipment of electronics and machinery, and the transformation center of power plays a major role in connecting the upper and lower. If the motor stops working or obstacles, the lock will automatically open and cannot be locked.
4. Fingerprint module and application system. This is the basis of the electronic part. Fingerprint module, the peer function is almost the same, mainly depends on the chip and algorithm.
LCD screen
The operation of the liquid crystal display is more convenient and simple, and the fingerprint lock is more intelligent. Configuring liquid crystals is not a simple material accumulation, but also involves the rational design of software and circuitry. In general, the use of this technology is like the fingerprint lock itself instead of the mechanical lock, which is the inevitable development of technology and market!
chip
At present, the domestic DSP fingerprint lock professional processing chip has been successfully developed in China, and domestic manufacturers are programming the algorithm software; most fingerprint lock manufacturers use domestic fingerprint algorithm chips.
sensor
Fingerprint sensors are mainly optical sensors and semiconductor sensors.
Fingerprint module, password module.
After years of development, smart locks have developed different development trajectories in different application environments of different industries, and the functions of supporting keys and management software are also more detailed.
1. The power industry, taking substations as an example, gradually developed into a five-proof system, which became a terminal for preventing misoperation. The main function is to standardize operating authority and prevent safety accidents. Another application in the power industry is various metering cabinets. The metering security guarantee is an intelligent requirement for preventing illegal opening of measuring instruments and preventing electricity theft.
2, the communication industry, mainly used in optical junction boxes and other cabinets, the role is to strengthen management, with intelligent keys and management software, the introduction of efficient management of a large number of transfer boxes, and clear responsibility, unlocking is well documented.
3, special transport, valuable or dangerous goods transport process, in order to avoid the traditional locks and keys are easily opened by the technology, you can add passive smart lock.
According to the data, 60%-70% of household lock cylinders still use the marble lock cylinder that was popular in the 1990s. Because it has been circulating in the market for more than ten years, its internal structure and unlocking principle have been well known by thief research. The technical unlocking time is also from a few minutes to the current few seconds. Such locks are ineffective in front of the thief, posing serious security risks to the family. Coupled with the prevalence of tin foil unlocking technology in recent years, it is even worse for household safety hazards. The low-level anti-theft performance of traditional locks can no longer meet the needs of modern home security. The development of smart locks is the trend of the times. In today's society, technology is the core, and intelligence is the trend. The intelligence and convenience of home is already the mainstream of life. Smart products are everywhere, intelligent buildings, smart homes, and intelligent transportation. While intelligentization gradually penetrates into people's lives, the door locks used for theft prevention have also undergone changes across the era. The emergence of smart locks is even more To a certain extent, people have changed their perception of locks and lock habits.
Compared with traditional mechanical locks, smart locks are safer and more convenient. Like Hengwei's smart door lock, it can also integrate functions such as false passwords, anti-theft alarms, and smart homes to provide multiple protection against theft. For example, when a thief can't open a door with a fake fingerprint, and wants to break into the door, the Hengwei smart lock can automatically activate the burglar alarm function to notify the owner or the community security. In addition, it can also be linked with the smart home. When the thief climbs in from the window, it will touch the smart home device connected with the smart lock, which will cause an alarm.
For young people, it is a matter of exemption to carry a string of heavy and messy keys when they go out, and the emergence of smart locks is the rescue of them. Without the burden of the keys, they can enjoy partying, playing, shopping, and after a tiring day, they don’t have to carry large bags and small bags at their doorsteps. In addition, young people who like nightlife have a smart lock, and no matter how late they come back, they can easily and freely enter the house without disturbing their families. In addition, some smart lock management systems can solve the problem of personnel management for the user in the first time. For example, the home babysitter resigned, and as long as her fingerprint is deleted, she can no longer open the door. The safe, convenient features and anti-theft functions of the smart lock meet the needs of the public and are increasingly recognized as an effective landing method in the smart home era. In the future, smart locks will become a trend and enter the homes of ordinary people.
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