General knowledge about access control systems

1. What products are in the access control system?

The access control system consists of two parts:

(1) Biometric identification: Some people have their own special signs as identification signs, such as palm prints, fingerprints, facial expressions, etc. (2) Mark identification: Special signs of external objects are used as identification marks. Such as passwords, proximity cards, IC cards, etc. 2. What is included in the access control system?

It can be roughly divided into three parts (1): Controlling the host: responsible for receiving the signal and identifying the signal, and then performing actions to open or close the door (2). Door lock: lock the door unless the power is turned off or the power is turned on. In operation, the door should not be automatically opened (3). Other accessories: Outgoing switch, power supply, etc. 3. What is the risk factor of the access control system (such as the high temperature of the wire is a weak product? To avoid some unpredictable fire escape.. Etc.) Most of the access control systems are 12V or 24V products.

4. Electronically controlled locks are controlled by electric energy and must be controlled by electric energy. They can be regarded as electronically controlled locks, and electronically controlled locks can be classified as "Fail-Safe" and "Fail-Safe" (Fail-Safe). Secure) Two kinds, such as magnetic lock and electric plug lock are power-off open locks.

5. What is "Fail-Secure"?

Normally, when the door is closed, the lock body is not energized, and the lock door is in the “locked door” state. When the lock is energized via an external control system (such as a credit card reader or card reader), the internal body will start to move and complete. The state of "open door", such as the cathode lock.

6. What is "Fail-Safe" (Power-Off)?

In the normal closed state, the lock body is continuously energized, and the “lock door” state is displayed. When the lock is powered off via an external control system (eg, a credit card machine or card reader), the internal body will act and complete. "Open the door" status, such as a magnetic lock.

7, power failure to open the door in case of power failure does not open the door?

With UPS uninterrupted power system, such as the company's RF-7000XX series, even with transformer, voltage regulator function, plus the battery, it can become an uninterrupted power system, to prevent the formation of access blackout.

8, "Power off the door" is good? Or is it "powered off"?

Basically, this is a different point of view: "Power off and open the door": It applies to fire safety regulations. Most of the fires are caused by the loss of electric wires. The heat of the fire scene can melt the hardware of the metal door lock and can not open the door to escape. Many people are buried in the fire because the door lock can not open to escape the fire, the advantage of power to open the door is that once the wire is out of the fire and cause power outages, the channel's smoke door will move to prevent the smoke from spreading, people can easily Open the door to escape. "Power off the door": It is applicable to the vaults and other high-security access control occasions. At this time, we can use the electronic mechanical lock and the cathode lock together with the lock core. Once the personnel are in danger, they can still use the screw. Twist or key to open the door.

9. Why did the door fail to close properly after the two-way door lock was installed?

After the door locks are installed, the door cannot be properly opened and closed. This is the problem that most people encounter. However, the real reason is not mostly a lock problem (perhaps a few of them are due to human-made installations). Imagine a lock that is only responsible for the switch. How to make the door back to the correct position? Of course not! Therefore, most of the problems originate from the quality of door springs. Simply put, suppose a door weighs 120 pounds. How many pounds of floor springs does this place? Maybe you would say 120 pounds or more, but some manufacturers do not pay attention to the issue of pounds, 120 pound doors, 80 pounds, or even lower pounds However, the problem of early use is not significant. When used for a long period of time, the failure to return the door, the slow return of the door, and the drooping of the door are problems that gradually surface in the future. Therefore, when you mount a shear lock or an anode lock, the problem arises. Therefore, when you want to install a two-way lock, you first have to look at the positioning of the door and change the door spring.

10, if you do not want to spend money for the spring, what can be replaced?

(1) Adjusting the floor spring: It is difficult to say, but if it is not professional, please ask someone else. (2) Fixed door opening direction: Change to one-way door opening, pull inward, or open the door outward, the problem will be Less, but there are still objective installation factors, such as: door frame size, door frame spacing too much..........etc.

Directions: Unidirectional (inward? Outward?), Bidirectional, Translational?

Material: Metal (aluminum alloy, stainless steel), wood, glass door (with or without frame, door with frame?)

Spacing: The distance from the door panel to the door frame. Will the door jam to the door frame when the door is opened or closed?

Size: The size of the door?

Quantity: single or double?

Uses: fire doors? Warehouse door? Access door?

Special: Are there any special requirements? Gate signal output? Time delay.....etc?

12. What is residual magnetism?

In simple terms, the lock body still retains the magnetic force after the power is turned off, causing the lock body to remain adsorbed and unable to open the door. This is a very dangerous thing. Once a dangerous event (eg, a fire .....) causes a smoke door Can not be closed or escape door can not be opened ...!!! A simple residual magnetic defects, but it caused the loss of life and property, which is a very dangerous problem.