Future composition status and trends of access control systems
Author: huifan Time: 2020-02-18
The access control system belongs to a security system in an intelligent weak current system. As a new type of modern safety management system, it integrates automatic identification technology and modern safety management measures into one. It involves many new technologies such as electronics, machinery, optics, computer technology, communication technology, biotechnology and so on. The access control system installs door magnets, electric locks or controllers, card readers and other control devices at the main entrances and exits in the building, elevator halls, equipment control center rooms, valuables warehouses and other important departments. The management personnel monitor in the central control room, and can control the real-time control or set program control of the position, passage object, passage time, direction, etc. of each aisle, so as to control the entrance and exit. Doorway Baifenbai can be upgraded with automatic door access control. The following briefly introduces the future composition, status and trends of the access control system.
The access control system is generally composed of access control devices, access control card readers, cards, electric locks, access control software, power supplies and other related access control devices.
Access controller: The access controller is the core part of the access control system. Its function is equivalent to the CPU of the computer. It is responsible for the processing, storage, and control of input and output information of the entire system. It verifies the reliability of the input information of the access control card reader, and judges its validity according to the access rules. If it is valid, it sends an action signal to the execution unit. The performance of the access controller directly affects the stability of the system, and the stability of the system directly affects the safety of customers' lives and property.
Access control card reader: Read the data and biometric information in the card, and transmit these information to the access control.
Card: Electronic key for opening the door of the access control system. This "Key" can be a magnetic card, IC card, ID card and other related functions (the card can print the cardholder's personal photo, and the door card and badge are combined into one).
Electric control lock: The executive component of the access control system. The electric control lock usually opens the door when power is off to meet the fire protection requirements. It is equipped with multiple types of installation structures for customers to choose. According to different technical requirements such as one-way wooden doors, glass doors, metal fire doors and two-way facing electric doors, different types of electric control locks can be selected.
Access control software: responsible for the monitoring, management, and query of the access control system. Managers can adjust and expand functions such as patrols, attendance and personnel positioning.
Power supply and other related access control equipment: The power supply is responsible for the energy of the entire access control system and is a very important component (if the access control system is without power, the entire access control system will become paralyzed). Other access control devices, such as the exit button, are used to open the door opening device, which is applicable to the situation where there is no restriction on the exit. Another example is the door sensor, which is used to detect the safety / on / off status of the door.
The access control system has developed rapidly with the development of automatic identification technology. At present, the access control systems developed and used at home and abroad are mainly concentrated in inductive access control systems and biometric access control systems. Among biometric access control systems, fingerprint access control systems are most widely used. With the continuous development and maturity of computer image processing and pattern recognition theory and large-scale integrated circuit technology, the size of automatic fingerprint recognition systems continues to shrink, and their prices continue to decrease. In 2002, fingerprint recognition accounted for nearly 50%, and iris recognition accounted for 8%. In 2005, fingerprint recognition accounted for nearly 40% and iris recognition accounted for about 10%. In the next few years, the trend of high-speed growth will still be maintained. Looking at the development of the access control market, it is expected that the average growth rate of the Chinese access control market will reach more than 20% in the next 1-3 years.
At present, the access control systems produced abroad have higher security, but are expensive. The price of the inductive access control system controllers ranges from 4,000 to 30,000 yuan, including a system of card readers, door locks, controllers and software. The quotation is above 10,000 yuan. The domestically produced inductive access control system and fingerprint access control system are about 10% -50% lower than similar foreign products, but the system reliability is slightly worse.
Advanced intelligent access control system is an important development direction of the current access control system. Advanced intelligent access control system is a networked access control system with relatively complete functions. However, it is not the most ideal choice for general enterprises and residential communities. This access control system is often used in defense, military and other units.
With the rapid popularization and development of computers, more and more control equipment is gradually replaced by computers, the monitoring and maintenance of maintenance personnel are becoming more and more centralized, and more and more systems are gradually developing towards intelligence. Due to the development of computer networks, equipment can be monitored and maintained through the center or through an endpoint. Centralized monitoring and maintenance of equipment in this area through the local area network can improve the reliability of the system and reduce the incidence of failure and processing time.
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