The access controller is the center of the access control system, just like the engine in a car. The performance of the access controller directly affects the stability of the access control system, and the stability of the system directly affects the safety of customers' lives and property.

At present, there are many access controller products on the Chinese market, and the functions are almost the same, but the quality is uneven. Therefore, product selection is particularly important for engineering companies. So how to choose a high-quality access controller? We have summarized the following experience through years of practice and shared with you:

Our principle is "stable and reliable performance, practical function, price advantage, localized sustainable service capability".

1. Anti-crash design

The access control controller crashes just like a car engine stalls. No matter how powerful the controller design is, if

In the event of a crash, the controller cannot work, and no function can be reflected. If there is a crash in the application, it means that the area controlled by the controller cannot enter and exit normally, and may even cause serious safety hazards and inestimable losses.

Second, the capacity of the relay

The output of the access controller is controlled by the relay. When the controller is working, the relay should be opened and closed frequently, and each time

There is an instantaneous current through the second opening and closing. If the relay capacity is too small, the instantaneous current may exceed the relay capacity, which will quickly damage the relay. In general, the relay capacity should be more than 3 times the peak current of the electric lock.

Third, the protection of the controller

The working voltage of the components of the access control controller is generally 5 volts. If the voltage exceeds 5 volts, the components will be damaged.

And make the controller can not work. This requires that all input and output ports of the controller have dynamic voltage protection to avoid

Large external voltage may be applied to the controller and damage the components.

Fourth, the adaptive function of the front-end input device

Because different users and different applications have different requirements for the input devices of the access control system. This requires access control

The device can be compatible with a variety of front-end input devices (for example: support Wiegand26Bit, Wiegand32Bit, Wiegand27Bit, ABA (second track), object recognition technology, fingerprint recognition technology, inductive IC card, password keyboard, watermark magnetic card, etc.). And can automatically detect the input front end.

V. Reliability of management software

A high-quality access control system requires not only high-quality controllers, but also highly reliable and fault-tolerant management software support.

Six, after-sales service should include two aspects

One is a complete technical support system, including the ability to provide localized pre-sales support and after-sales technical support; second, a strong follow-up R & D capability to ensure the continuity and advanced nature of the product.

Seven, quality certification

Access control controllers and system products sold in China must pass the "type inspection" (not commissioned inspection) of the Ministry of Public Security's Security and Police Electronic Product Testing Center, and the software should pass the testing of the China Software Evaluation Center. The production should be produced by professional electronics manufacturers with ISO9000 certification, especially military enterprises.

8. Price

The experience of the IT industry tells us a truth: a powerful enterprise must be able to provide society with high-quality products with price advantages to meet customer needs, and at the same time ensure that engineering companies can obtain a reasonable profit margin from it.