The importance of the access controller to the entire access control system is not exhausted. The access controller is just like the heart of a person. The soul of the system, on the whole, is to select a good access controller, which not only saves engineering costs, but also extends the overall system. Lifetime, and later maintenance and system expansion will also be quite convenient. The access controller is the hardware core of the access control system, and its quality and performance directly affect the stability of the entire access control system. As the core data processing and storage part of the access control system, the access controller bears the card reading rights and access permission of the set card, monitors the entrance and exit status, records the access control events, and links with other systems such as alarm and fire fighting systems. The important function.
As the access control system plays an increasingly important role in the security management of enterprises, the traditional mechanical door lock management can no longer meet the security management of modern enterprises. Its performance is as follows:
Improve security: The management of access rights for graded and time-slots in designated areas shall be restricted, and relevant personnel shall be restricted from entering important areas at will. According to the position of the staff and the nature of their work, their access levels and time periods allowed to pass shall be determined. Management of some important areas such as banks The vault and subway control rooms are equipped with a variety of access methods to meet regional requirements for better security and prevent theft.
Improve management efficiency: Through the central management center to understand and set the status of each access point in real time, and reduce the cost of personnel patrolling. The system can record events in real time, making it easy for companies to produce various personnel management reports such as attendance and schedules.
Can integrate with other systems: Integrate with the fire, alarm and other systems a unified security platform to achieve accident warning, prevent all kinds of dangers. When the disaster enters the fire, the system can automatically open the gates set in the control area to facilitate the escape of people. In combination with the monitoring system, the access control system can automatically switch the photographic screen and monitor and record the parts that need to be monitored.
Therefore, the stability and performance of the access controller are also receiving more and more attention. Access controller must be able to establish communication with the computer, real-time monitoring of the entrance and exit conditions of each door, and through the access control software installed on the computer to set the card permissions and analysis query access control access records, generate statistical attendance reports; Once the communication is interrupted The system can run normally offline. Therefore, a secure, flexible, easily expandable network access controller that can be integrated with other platforms will be the trend for access controllers.
The data transmission of the networked access controller is more secure and stable, and can optimize the application of the existing resources of the enterprise.
The aspheric lens uses a single element design, which helps reduce the number of lenses in the optical assembly. Unlike spherical lenses, aspheric lenses have a more complex surface, and the curvature of the surface gradually changes from the center of the lens to the edge of the lens. The most significant advantage is that it can correct the spherical aberration caused by the Spherical Lens in the collimation and focusing system. One of the applications of aspheric lenses includes focusing the output from a laser diode, which not only reduces the overall cost, but also outperforms components designed using traditional spherical optical lenses.
The asphere's more complex surface profile can reduce or eliminate spherical aberration and also reduce other optical aberrations such as astigmatism, compared to a simple lens. A single aspheric lens can often replace a much more complex multi-lens system. The resulting device is smaller and lighter, and sometimes cheaper than the multi-lens design.Aspheric elements are used in the design of multi-element wide-angle and fast normal lenses to reduce aberrations. Small molded aspheres are often used for collimating diode lasers.
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