“Since the birth of smart access control, it has experienced technical iterations of card access control, mobile phone access control, biometric access control, and integrated access control. The integration, security, and intelligence of the access control system have become more and more perfect. No matter how the access control system is upgraded, the three core modules have not changed, namely: perception, control, and execution units.
Since the birth of smart access control, it has experienced technical iterations of card access control, mobile phone access control, biometric access control, and integrated access control. The integration, security, and intelligence of the access control system have become more and more perfect. No matter how the access control system is upgraded, the three core modules have not changed, namely: perception, control, and execution units.
The main function of the sensing unit is to perceive the user’s unique identity through card readers, password keyboards, various biometrics, exit buttons, lock status sensors and other sensor components, and convert the recognition results into electrical signals, which are uploaded or checked after verification. Upload (biometric device, such as face, fingerprint).
The sensing unit transmits the collected identification (voucher) to the control unit. There are multiple types of identification in the access control system, such as passwords, fingerprints, cards, faces, QR codes, mobile phones, etc. Each type of identification represents a technical realization method, and the product form of the sensing unit is usually a reading head and a controller.
The control unit is the soul component of the access control system, and is the user information storage, management and information processing center. The controller and management software are responsible for the management function of the access control system. After they receive the information from the sensor, they judge whether to open the door according to the time, card number and other information. If the door is opened, it will issue an open command to the electric lock. When the lock status sensor is received, it starts timing, and alarms when overtime. The product form of the control unit is usually a controller and a server.
The function of the control unit: define the identity and add, delete, and modify the work, record and upload the normal and abnormal information to the server.
The controller controls the overall decision-making, usually according to the combined logic of the overall strategy, scene strategy, identity, time and role to make decisions, and decide the next execution action. For example: After swiping the card, you must enter the password; on Sundays, no one is allowed to enter the scene strategy; the previous person enters the first door, and the second door is swiped within 5 seconds, the talents behind can enter; the leader on duty must swipe the card first. Later employees can swipe their cards to enter the identity; a person has one or more types of identity; access time, no access time; visitor, employee, leader, security, cleaning, VIP and other roles, different roles correspond to different permissions.
In most cases, the controller belongs to the sensing unit and the control unit at the same time. Generally, in the more advanced intelligent access control system, the server stores all the identification and decision information in the project, and the server sends the user information to the corresponding controller, and the controller stores the identification and control information related to the scene. This also enables the cloud access control of the Internet + access control system to realize user and device management decentralization and domain division, permanent storage of access information, big data analysis, and more advanced functions such as the number of people managed to reach 10,000 people, giving the intelligent access control system unlimited extension capabilities .
As the name implies, the execution unit is the Display of the result after the control unit has processed the information. When the electric lock receives the command to open or close the door from the controller, it controls whether the corresponding access control is open or not by means of power supply or power failure. At the same time, the lock state sensor in the electric lock plays a role of feedback and supervision, and the execution result will also be fed back to the control unit, which is uploading to the server.
The product form of the executive unit is not only limited to electric locks, but also elevator control. The signal transmitted by the controller achieves the purpose of controlling the operation of the elevator, such as: scanning the code to dispatch the elevator, mobile phone elevator control, and elevator operation monitoring. At the same time, the implementation of electric lock linkage is also an important manifestation of the current degree of intelligence of access control, such as: scanning code, swiping face, etc., when the electric lock is opened, the elevator is linked at the same time to realize automatic elevator dispatch; video linkage signal, if people enter and exit, It also needs to be linked through a video surveillance system, such as catching fear or recording.
These three units cooperate and cooperate with each other to form an access control system. The brand access control manufacturer opens the gap and establishes absolute advantages through in-depth technical development of each unit module, such as the speed of opening the door in the access control, the linkage function of the access control and the elevator , Smart elevators, access control platforms and the integration of peripheral systems have advanced technical advantages.